Question

A number is a said to be ________________ number when all its factors add up to twice that number the examples are __________ and___________​

Answer 1

Answer:

perfect number,6&28

Step-by-step explanation:

6:factors are  1,2,3,6.

sum=12 twice of 6

28: factors are 1,2,3,4,7,14,28.

saum=56 twice of 28