Q: What is the sum of all factors of the number 87,021 excluding 87,021?
A: 54,099
The factors of the number 87,021 are: 1, 3, 9, 11, 27, 33, 99, 293, 297, 879, 2637, 3223, 7911, 9669, 29007, 87021.
If you add them up, you will get the total of 87,075. Now subtract 87,021 to get 54,099