The only such number is 1.
1 and 53
11,6,1,2,33
None, 53 is a prime number.
No.
Yes, 66/3 = 22
YES
1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132
no numbers!
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
These will: 1, 2, 3, 6, 11, 22, 33, 66.
The numbers that go into 30 are1, 2, 3, 5, 30, 15, 10, 6
Two: 1 and 53.