21358530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5519}}^1$

素因数の和:5575

約数の個数: 48

約数和(自身を含む): 56833920

約数和(自身を除く): 35475390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 5519, 11038, 16557, 27595, 33114, 49671, 55190, 82785, 99342, 165570, 237317, 248355, 474634, 496710, 711951, 1186585, 1423902, 2135853, 2373170, 3559755, 4271706, 7119510, 10679265, 21358530]

約数ペア:

[(1, 21358530), (2, 10679265), (3, 7119510), (5, 4271706), (6, 3559755), (9, 2373170), (10, 2135853), (15, 1423902), (18, 1186585), (30, 711951), (43, 496710), (45, 474634), (86, 248355), (90, 237317), (129, 165570), (215, 99342), (258, 82785), (387, 55190), (430, 49671), (645, 33114), (774, 27595), (1290, 16557), (1935, 11038), (3870, 5519)]