Q: What is the sum of all factors of the number 19,978 excluding 19,978?
A: 14,294
The factors of the number 19,978 are: 1, 2, 7, 14, 1427, 2854, 9989, 19978.
If you add them up, you will get the total of 19,992. Now subtract 19,978 to get 14,294