Q: What is the sum of all factors of the number 405,142,121 excluding 405,142,121?
A: 661,531
The factors of the number 405,142,121 are: 1, 613, 660917, 405142121.
If you add them up, you will get the total of 405,142,782. Now subtract 405,142,121 to get 661,531