#include<bits/stdc++.h>
using namespace std;

using ll = long long;

int main() {

  ll N; cin >> N;

  vector<tuple<ll, ll, ll>> ans;
  
  auto push = [&](ll a, ll b, ll c) {
    ans.push_back({a, b, c});
    ans.push_back({a, c, b});
    ans.push_back({b, a, c});
    ans.push_back({b, c, a});
    ans.push_back({c, a, b});
    ans.push_back({c, b, a});
  };

  for (int i = 1; i * i <= N; i++) {
    if (N % i != 0) continue;
    int j = N / i;
    push(0, i, j);
  }

  for (ll x = 1; x <= N; x++) {
    for (ll y = x; x * y <= N; y++) {
      if ((N - x * y) % (x + y) != 0) continue;
      ll z = (N - x * y) / (x + y);
      push(x, y, z);
    }
  }

  sort(ans.begin(), ans.end());
  vector<tuple<ll, ll, ll>> n;
  for (auto p : ans) {
    if (n.size() == 0 || n.back() != p) {
      n.push_back(p);
    }
  }
  cout << n.size() << "\n";
  for (auto [x, y, z] : n) {
    cout << x << " " << y << " " << z << "\n";
  }

}