1, 2, 4, 7, 14, and 28 are the numbers you seek.
Yes by itself and any other of its factors
Composite numbers.
56 , can be evenly divided by 56 (1x) and 28 (2x)
196 can be divided evenly by these numbers: 1 2 4 7 14 28 49 98 and 196.
2
Yes by itself and any other of its factors
1, 2, 4, 7, 8, 14, 28, 56.
7 is a prime number and is also too small to have any numbers evenly divided into it.
Composite numbers.
This sort of number is a factor, which means 28 can be divided by the number and the quotient will have no remainder. Factors of 28 are 28, 14, 7, 4, 2, and 1.
An infinite number of of multiples of 24 can be divided by 24 evenly.
56 , can be evenly divided by 56 (1x) and 28 (2x)
These whole numbers can be divided into 20 evenly: 1, 2, 4, 5, 10, 20.
These are the numbers that divide into 28 evenly: 1, 2, 4, 7, 14, 28.
196 can be divided evenly by these numbers: 1 2 4 7 14 28 49 98 and 196.
2,3,4,6,8,12,24
1,11,19,209