Q: What is the sum of all factors of the number 138,243 excluding 138,243?
A: 80,637
The factors of the number 138,243 are: 1, 3, 7, 21, 29, 87, 203, 227, 609, 681, 1589, 4767, 6583, 19749, 46081, 138243.
If you add them up, you will get the total of 138,323. Now subtract 138,243 to get 80,637