Q: What is the sum of all factors of the number 43,978 excluding 43,978?
A: 28,022
The factors of the number 43,978 are: 1, 2, 11, 22, 1999, 3998, 21989, 43978.
If you add them up, you will get the total of 44,006. Now subtract 43,978 to get 28,022