#include <iostream>
#include <cstring>
#include <cstdio>
#include <algorithm>
using namespace std;



int main()
{
    int n,t,sum;
    int ans[100000],shu;
    int qwe;
    scanf("%d",&qwe);
    while(qwe--)
    {
        scanf("%d",&n);
        t = n;
        sum = 0;
        while(t > 0)
        {
            sum += t % 10;
            t /= 10;
        }
        shu = 0;
        for(int i = 1;i <= sum;i++)
        {
            if(sum % i == 0 && n % i == 0)
            {
                ans[shu++] = i;
            }
        }


        printf("%d\n",shu);
        for(int i = 0;i < shu;i++)
        {
            if(i != 0)
                printf(" ");
            printf("%d",ans[i]);
        }
        printf("\n");


    }
    return 0;
}