Q: What is the sum of all factors of the number 421,981 excluding 421,981?
A: 81,443
The factors of the number 421,981 are: 1, 7, 23, 161, 2621, 18347, 60283, 421981.
If you add them up, you will get the total of 422,062. Now subtract 421,981 to get 81,443