#include <iostream>
#include <algorithm>
#include <vector>
#include <cmath>
#include <map>
using namespace std;
#define int long long
int n;
vector<int> v;
vector<int> ans;
int temp[100000];
void dp(int idx, int curr, int end){
if(idx == (int)v.size()){
ans.push_back(curr - end - 1);
return;
}
for(int i = end; i >= 0; i--){
temp[i] *= v[idx];
dp(idx + 1, curr + temp[i] - temp[i] / v[idx], end);
temp[i] /= v[idx];
}
temp[end + 1] = v[idx];
dp(idx + 1, curr + v[idx], end + 1);
temp[end + 1] = 0;
}
signed main(){
cin >> n;
int f = 2;
while(f <= (int)sqrt(n) + 1 && n > 1){
if(n % f == 0){
v.push_back(f);
n = n/f;
}
else f++;
}
if(n > 1) v.push_back(n);
dp(0, 0, -1);
sort(ans.begin(), ans.end());
int cnt = 0;
for(int i = 0; i < (int)ans.size(); i++){
if(i == 0 || ans[i - 1] != ans[i]) cnt++;
}
cout << cnt << "\n";
for(int i = 0; i < (int)ans.size(); i++){
if(i == 0 || ans[i - 1] != ans[i]) cout << ans[i] << " ";
}
}
