Q: What is the sum of all factors of the number 642,447 excluding 642,447?
A: 475,033
The factors of the number 642,447 are: 1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 289, 323, 663, 741, 867, 969, 1989, 2223, 2601, 2907, 3757, 4199, 5491, 11271, 12597, 16473, 33813, 37791, 49419, 71383, 214149, 642447.
If you add them up, you will get the total of 642,922. Now subtract 642,447 to get 475,033