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

typedef long long LL;

int main() {
    int T;
    LL v;
    scanf("%d", &T);
    while (T--)
    {
        scanf("%I64d", &v);
        int sum = 0;
        for (LL t = v; t; t /= 10) sum += t % 10;
        vector<int> ans;
        for (int i = 1; i <= sum; ++i)
            if (sum % i == 0 && v % i == 0)
                ans.push_back(i);
        printf("%d\n", (int)ans.size());
        for (int i = 0; i < (int)ans.size(); ++i)
        {
            if (i) putchar(' ');
            printf("%d", ans[i]);
        }
        puts("");
    }
    return 0;
}