#include <bits/stdc++.h>
using namespace std;
// macros
typedef long long ll;
typedef long double ld;
typedef pair<int, int> ii;
typedef pair<ll, ll> lll;
typedef tuple<int, int, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<iii> viii;
typedef vector<ll> vll;
typedef vector<lll> vlll;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define RE(a,c) REP(a,0,c)
#define RE1(a,c) REP(a,1,c+1)
#define REI(a,b,c) REP(a,b,c+1)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define FOR(a,b) for(auto& a : b)
#define all(a) a.begin(), a.end()
#define INF 1e9
#define EPS 1e-9
#define pb push_back
#define popb pop_back
#define fi first
#define se second
#define sz size()
// input
template<class T> void IN(T& x) {cin >> x;}
template<class H, class... T> void IN(H& h, T&... t) {IN(h); IN(t...); }
// output
template<class T1, class T2> void OUT(const pair<T1,T2>& x);
template<class T> void OUT(const T& x) {cout << x;}
template<class H, class... T> void OUT(const H& h, const T&... t) {OUT(h); OUT(t...); }
template<class T1, class T2> void OUT(const pair<T1,T2>& x) {OUT(x.fi," ",x.se);}
template<class... T> void OUTL(const T&... t) {OUT(t..., "\n"); }
//===================//
// Added libraries //
//===================//
//===================//
//end added libraries//
//===================//
void program();
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
program();
}
//===================//
// begin program //
//===================//
const int MX = 5e5;
int n, m;
vi f;
set<int> ans;
vi primeFact(ll x) {
vi f;
for(ll y=2;y*y<=x;y++) {
while((x % y) == 0) {
x /= y;
f.pb(y);
}
}
if(x != 1) f.pb(x);
return f;
}
void getAns(int mul, int c=1, int added=0) {
set<int> dif;
for(int i:f) dif.insert(i);
for(int i:dif) {
f.erase(find(all(f),i));
getAns(mul/i, c*i, added);
f.pb(i);
}
if(c != 1) {
getAns(mul, 1, added+c-1);
} else {
ans.insert(mul-1+added);
}
}
void program() {
IN(n);
vi pf = primeFact(n);
f = pf;
getAns(n);
OUTL(ans.sz);
bool f=1;
FOR(i,ans) OUT(f?"":" ",i), f=0; OUTL();
}
