#include<bits/stdc++.h>
#define Ms(a,b) memset(a,b,sizeof a)
#define db(x) cout<<#x<<"="<<x<<endl;
#define db2(x,y) cout<<#x<<"="<<x<<" "<<#y<<"="<<y<<endl;
#define db3(x,y,z) cout<<#x<<"="<<x<<" "<<#y<<"="<<y<<" "<<#z<<"="<<z<<endl;
using namespace std;
int T,n,ans[10000],tot;
int main() {
    scanf("%d",&T);
    while(T--) {
        scanf("%d",&n),tot=0;
        int tmp=n,sum=0;
        while(tmp)sum+=tmp%10,tmp/=10;
        for(int i=1; 1ll*i*i<=n; i++) {
            int x=i;
            if(n%x==0&&sum%x==0)ans[++tot]=x;
            if(x!=n/x&&n%x==0&&sum%(n/x)==0)ans[++tot]=n/x;
        }
        sort(ans+1,ans+1+tot);
        printf("%d\n",tot);
        for(int i=1; i<=tot; i++)printf("%d",ans[i]),putchar(i==tot?'\n':' ');
    }
    return 0;
}