Q: What is the sum of all factors of the number 378,651 excluding 378,651?
A: 284,389
The factors of the number 378,651 are: 1, 3, 7, 13, 19, 21, 39, 57, 73, 91, 133, 219, 247, 273, 399, 511, 741, 949, 1387, 1533, 1729, 2847, 4161, 5187, 6643, 9709, 18031, 19929, 29127, 54093, 126217, 378651.
If you add them up, you will get the total of 378,935. Now subtract 378,651 to get 284,389