Q: What is the sum of all factors of the number 401,991 excluding 401,991?
A: 145,593
The factors of the number 401,991 are: 1, 3, 47, 141, 2851, 8553, 133997, 401991.
If you add them up, you will get the total of 402,136. Now subtract 401,991 to get 145,593