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

long long a[1000000];

int main()
{
    int t;
    cin>>t;
    while (t--)
    {
        long long v;
        cin>>v;
        long long w = v;
        long long cut = 0;
        int p =0;
        while (w)
        {
            cut+=w%10;
            w/=10;
        }
        for (long long i=1;i<=cut;i++)
        {
            if (cut%i==0&&v%i==0)
            {
                a[p++]=i;
            }
        }
        cout<<p<<endl;
        for (int i=0;i<p-1;i++) cout<<a[i]<<" ";
        cout<<a[p-1]<<endl;
    }
}