Q: What is the sum of all factors of the number 399,243 excluding 399,243?
A: 195,477
The factors of the number 399,243 are: 1, 3, 13, 29, 39, 87, 353, 377, 1059, 1131, 4589, 10237, 13767, 30711, 133081, 399243.
If you add them up, you will get the total of 399,438. Now subtract 399,243 to get 195,477