Q: What is the sum of all factors of the number 143,289 excluding 143,289?
A: 81,771
The factors of the number 143,289 are: 1, 3, 9, 27, 29, 61, 81, 87, 183, 261, 549, 783, 1647, 1769, 2349, 4941, 5307, 15921, 47763, 143289.
If you add them up, you will get the total of 143,370. Now subtract 143,289 to get 81,771