21515940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119533}}^1$

素因数の和:119548

約数の個数: 36

約数和(自身を含む): 65265564

約数和(自身を除く): 43749624

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119533, 239066, 358599, 478132, 597665, 717198, 1075797, 1195330, 1434396, 1792995, 2151594, 2390660, 3585990, 4303188, 5378985, 7171980, 10757970, 21515940]

約数ペア:

[(1, 21515940), (2, 10757970), (3, 7171980), (4, 5378985), (5, 4303188), (6, 3585990), (9, 2390660), (10, 2151594), (12, 1792995), (15, 1434396), (18, 1195330), (20, 1075797), (30, 717198), (36, 597665), (45, 478132), (60, 358599), (90, 239066), (180, 119533)]