Q: What is the sum of all factors of the number 421,456 excluding 421,456?

A: 542,768

Why is 542,768 the sum of all factors of 421,456, excluding 421,456?

The factors of the number 421,456 are: 1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 71, 106, 112, 142, 212, 284, 371, 424, 497, 568, 742, 848, 994, 1136, 1484, 1988, 2968, 3763, 3976, 5936, 7526, 7952, 15052, 26341, 30104, 52682, 60208, 105364, 210728, 421456.

If you add them up, you will get the total of 421,998. Now subtract 421,456 to get 542,768