#include <cstdio>
#include <cstring>
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <cstdlib>
#include <algorithm>
#include <cmath>
using namespace std;

int T, v, m, ans[1005];

int main (){
    scanf ("%d", &T);
    while (T --){
        m = 0;
        scanf ("%d", &v);
        int t = v, Sum = 0;
        while (t > 0){
            Sum += t % 10;
            t /= 10;
        }
        for (int i = 1; i <= Sum; i ++){
            if (Sum % i == 0 && v % i == 0)
                ans[++ m] = i;
        }
        printf ("%d\n", m);
        for (int i = 1; i < m; i ++)
            printf ("%d ", ans[i]);
        if (m)
            printf ("%d\n", ans[m]);
        else
            printf ("\n");
    }
    return 0;
}