#include<iostream>
#include<algorithm>
using namespace std;
int a[100000], p;
int main() {
    int t; cin >> t;
    while (t--) {
        int n; cin >> n; p = 0;
        int tmp = n;
        int cnt = 0;
        while (tmp) {
            cnt += tmp % 10;
            tmp /= 10;
        }
        for (int i = 1; i <= n; i = n / (n / i) + 1) {
            int now = n / i;
            if (n%now)continue;
            if (cnt%now == 0)a[++p] = now;
        }
        cout << p << endl;
        for (int i = p; i > 1; i--) {
            cout << a[i] << " ";
        }
        cout << a[1] << endl;
    }
}