#include <iostream>
#include <vector>
#include <algorithm>
#include <cstring>
#include <map>
using namespace std;

void process()
{
    int v;
    cin >> v;

    int sv = 0;
    int t = v;
    while (t) {
        sv += t%10;
        t /= 10;
    }

    // cout << v << ' ' << sv << endl;

    vector<int> res;
    for (int i = 1 ; i <= sv; ++i) {
        if (sv % i == 0 && v % i == 0) {
            res.push_back(i);
        }
    }
    cout << res.size() << endl;
    cout << res[0];
    for (int i = 1; i < res.size(); ++i) {
        cout << ' ' << res[i];
    }
    cout << endl;
}

int main(void)
{
    int T;
    cin >> T;
    for (int i = 1; i <= T; ++i)
    {
        process();
    }
    return 0;
}