Q: What is the sum of all factors of the number 643,149 excluding 643,149?
A: 405,171
The factors of the number 643,149 are: 1, 3, 9, 13, 23, 39, 69, 117, 207, 239, 299, 717, 897, 2151, 2691, 3107, 5497, 9321, 16491, 27963, 49473, 71461, 214383, 643149.
If you add them up, you will get the total of 643,554. Now subtract 643,149 to get 405,171