21047640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4079}}^1$

素因数の和:4136

約数の個数: 64

約数和(自身を含む): 64627200

約数和(自身を除く): 43579560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4079, 5160, 8158, 12237, 16316, 20395, 24474, 32632, 40790, 48948, 61185, 81580, 97896, 122370, 163160, 175397, 244740, 350794, 489480, 526191, 701588, 876985, 1052382, 1403176, 1753970, 2104764, 2630955, 3507940, 4209528, 5261910, 7015880, 10523820, 21047640]

約数ペア:

[(1, 21047640), (2, 10523820), (3, 7015880), (4, 5261910), (5, 4209528), (6, 3507940), (8, 2630955), (10, 2104764), (12, 1753970), (15, 1403176), (20, 1052382), (24, 876985), (30, 701588), (40, 526191), (43, 489480), (60, 350794), (86, 244740), (120, 175397), (129, 163160), (172, 122370), (215, 97896), (258, 81580), (344, 61185), (430, 48948), (516, 40790), (645, 32632), (860, 24474), (1032, 20395), (1290, 16316), (1720, 12237), (2580, 8158), (4079, 5160)]