Q: What is the sum of all factors of the number 21,120,003 excluding 21,120,003?
A: 10,917,405
The factors of the number 21,120,003 are: 1, 3, 9, 23, 69, 207, 257, 397, 771, 1191, 2313, 3573, 5911, 9131, 17733, 27393, 53199, 82179, 102029, 306087, 918261, 2346667, 7040001, 21120003.
If you add them up, you will get the total of 21,120,013. Now subtract 21,120,003 to get 10,917,405