21112860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11351}}^1$

素因数の和:11394

約数の個数: 48

約数和(自身を含む): 61028352

約数和(自身を除く): 39915492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11351, 22702, 34053, 45404, 56755, 68106, 113510, 136212, 170265, 227020, 340530, 351881, 681060, 703762, 1055643, 1407524, 1759405, 2111286, 3518810, 4222572, 5278215, 7037620, 10556430, 21112860]

約数ペア:

[(1, 21112860), (2, 10556430), (3, 7037620), (4, 5278215), (5, 4222572), (6, 3518810), (10, 2111286), (12, 1759405), (15, 1407524), (20, 1055643), (30, 703762), (31, 681060), (60, 351881), (62, 340530), (93, 227020), (124, 170265), (155, 136212), (186, 113510), (310, 68106), (372, 56755), (465, 45404), (620, 34053), (930, 22702), (1860, 11351)]