#include <bits/stdc++.h>

using namespace std;
int ans[10005];
int numans; 
long long n;
void solve()
{
    cin >> n;
    int sum=0;
    long long n1=n;
    while (n1!=0)
    {
        sum+=n1%10;
        n1/=10;
    }
    bool boo=false;
    numans=0;
    for (int i=1;i<=sum;i++)
    {
        if ((n%i==0) && (sum%i==0))
        {
            ans[++numans]=i;
        }
    }
    printf("%d\n",numans);
    for (int i=1;i<numans;i++)
        printf("%d ",ans[i]);
    if (numans!=0) 
        printf("%d\n",ans[numans]);
    else
        printf("\n");
}

int main()
{

    int T;
    cin >> T;
    while (T--)
         solve(); 
    return 0;
}