Q: What is the sum of all factors of the number 123,143,013 excluding 123,143,013?

A: 87,060,123

Why is 87,060,123 the sum of all factors of 123,143,013, excluding 123,143,013?

The factors of the number 123,143,013 are: 1, 3, 7, 9, 21, 43, 63, 129, 131, 301, 347, 387, 393, 903, 917, 1041, 1179, 2429, 2709, 2751, 3123, 5633, 7287, 8253, 14921, 16899, 21861, 39431, 44763, 45457, 50697, 104447, 118293, 134289, 136371, 313341, 318199, 354879, 409113, 940023, 954597, 1954651, 2863791, 5863953, 13682557, 17591859, 41047671, 123143013.

If you add them up, you will get the total of 123,143,100. Now subtract 123,143,013 to get 87,060,123