Q: What is the sum of all factors of the number 15,121,621 excluding 15,121,621?
A: 155,991
The factors of the number 15,121,621 are: 1, 97, 155893, 15121621.
If you add them up, you will get the total of 15,121,776. Now subtract 15,121,621 to get 155,991