/*
DavitMarg
In a honky-tonk,
Down in Mexico
*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <random>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(), v.end()
#define fastIO ios::sync_with_stdio(false); cin.tie(0)
using namespace std;
const int N = 100005;
int n;
set<int> ans;
map<int, set<int>> dp[N];
map<int, int> used[N];
set<int> add(set<int> a,int d)
{
set<int> s;
for (auto it = a.begin(); it != a.end(); ++it)
s.insert(*it + d);
return s;
}
set<int> add(set<int> a, set<int> b)
{
for (auto it = a.begin(); it != a.end(); ++it)
b.insert(*it);
return b;
}
int sq(int x)
{
return sqrt(x);
}
void dfs(int num, int mx)
{
if (mx > num)
{
used[mx][num] = used[num][num];
dp[mx][num] = dp[num][num];
}
if (used[mx][num])
return;
used[mx][num] = 1;
for (int i = 1; i * i <= num; i++)
{
if (num % i)
continue;
if (i <= mx && i != 1)
{
dfs(num / i, i);
dp[mx][num] = add(dp[mx][num], add(dp[i][num / i], i - 1));
}
if (num / i <= mx && i != num / i)
{
dfs(i, num / i);
dp[mx][num] = add(dp[mx][num], add(dp[num / i][i], num/i - 1));
}
}
}
int main()
{
fastIO;
cin >> n;
used[1][1] = 1;
dp[1][1].insert(1);
for (int i = 1; i * i <= n; i++)
{
if (n % i)
continue;
if (i != 1)
{
dfs(n / i, i);
ans = add(ans, add(dp[i][n / i],i-1));
}
if (i != n / i)
{
dfs(i, n / i);
ans = add(ans, add(dp[n / i][i], n/i - 1));
}
}
cout << ans.size() << endl;
for (auto it = ans.begin(); it != ans.end(); ++it)
cout << (*it)-1 << " ";
cout << endl;
return 0;
}
/*
3
1 2
1 3
*/
