#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 47
#endif
#define int long long
int power(int a, int b, int n) {
int res = 1;
while (b > 0) {
if (b & 1) {
res *= a;
if (res > n) return -1;
}
a = (1LL * a * a);
b >>= 1;
}
return res;
}
set<int> s;
void go(int n, int cnt, int sum, int prv) {
if (n == 1) {
s.insert(sum);
return;
}
if (cnt == 0) {
return;
}
for (int x = prv; ; x++) {
if (power(x, cnt, n) == -1) {
break;
}
if (n % x > 0) continue;
go(n / x, cnt - 1, sum + x - 1, x);
}
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
go(n, 30, 0, 1);
cout << s.size() << '\n';
for (auto x : s) {
cout << x << ' ';
}
cout << '\n';
return 0;
}
