Q: What is the sum of all factors of the number 27,991,321 excluding 27,991,321?
A: 19,431
The factors of the number 27,991,321 are: 1, 1567, 17863, 27991321.
If you add them up, you will get the total of 27,991,340. Now subtract 27,991,321 to get 19,431