Q: What is the sum of all factors of the number 397,761 excluding 397,761?
A: 290,367
The factors of the number 397,761 are: 1, 3, 7, 13, 21, 31, 39, 47, 91, 93, 141, 217, 273, 329, 403, 611, 651, 987, 1209, 1457, 1833, 2821, 4277, 4371, 8463, 10199, 12831, 18941, 30597, 56823, 132587, 397761.
If you add them up, you will get the total of 398,051. Now subtract 397,761 to get 290,367