#include <iostream>
using namespace std;


int main()
{
    int T;
    cin >> T;

    long long n;
    for (int i = 0; i < T; i++)
    {
        cin >> n;

        int sum = 0;
        long long t = n;
        while (true)
        {
            sum += (t % 10);
            if (t < 10)
                break;
            t /= 10;
        }

        bool first = true;
        long long count = 0;

        for (int k = 1; k <= sum; k++)
            if (sum%k == 0 && n%k == 0)
                count++;

        cout << count << endl;

        for (int k = 1; k<=sum; k++)
        {
            if (sum%k == 0 && n%k == 0)
            {
                if (first)
                {
                    cout << k;
                    first = false;
                }
                else
                    cout << " " << k;
            }
        }
        cout << endl;
     }
    return 0;
}