Q: What is the sum of all factors of the number 21,391,277 excluding 21,391,277?
A: 538,987
The factors of the number 21,391,277 are: 1, 53, 173, 2333, 9169, 123649, 403609, 21391277.
If you add them up, you will get the total of 21,391,815. Now subtract 21,391,277 to get 538,987