21900330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5659}}^1$

素因数の和:5715

約数の個数: 48

約数和(自身を含む): 58275360

約数和(自身を除く): 36375030

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, 5659, 11318, 16977, 28295, 33954, 50931, 56590, 84885, 101862, 169770, 243337, 254655, 486674, 509310, 730011, 1216685, 1460022, 2190033, 2433370, 3650055, 4380066, 7300110, 10950165, 21900330]

約数ペア:

[(1, 21900330), (2, 10950165), (3, 7300110), (5, 4380066), (6, 3650055), (9, 2433370), (10, 2190033), (15, 1460022), (18, 1216685), (30, 730011), (43, 509310), (45, 486674), (86, 254655), (90, 243337), (129, 169770), (215, 101862), (258, 84885), (387, 56590), (430, 50931), (645, 33954), (774, 28295), (1290, 16977), (1935, 11318), (3870, 5659)]