Q: What is the sum of all factors of the number 402,039 excluding 402,039?
A: 256,905
The factors of the number 402,039 are: 1, 3, 9, 11, 31, 33, 93, 99, 131, 279, 341, 393, 1023, 1179, 1441, 3069, 4061, 4323, 12183, 12969, 36549, 44671, 134013, 402039.
If you add them up, you will get the total of 402,295. Now subtract 402,039 to get 256,905