#include<bits/stdc++.h>
using namespace std;
#define MAXN 1005
#define P 1000000007
int t,n,m,i,j,a[MAXN],k;
int main()
{
    scanf("%d",&t);
    while(t--)
    {
        scanf("%d",&n);
        for(i=n,m=0;i;i/=10)m+=i%10;
        for(k=0,j=1;j<=m;j++)if(m%j==0&&n%j==0)a[++k]=j;
        cout<<k<<endl;
        for(i=1;i<=k;i++)cout<<a[i]<<(i==k?'\n':' ');
    }
    return 0;
}