21855510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12781}}^1$

素因数の和:12813

約数の個数: 48

約数和(自身を含む): 59819760

約数和(自身を除く): 37964250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 12781, 25562, 38343, 63905, 76686, 115029, 127810, 191715, 230058, 242839, 383430, 485678, 575145, 728517, 1150290, 1214195, 1457034, 2185551, 2428390, 3642585, 4371102, 7285170, 10927755, 21855510]

約数ペア:

[(1, 21855510), (2, 10927755), (3, 7285170), (5, 4371102), (6, 3642585), (9, 2428390), (10, 2185551), (15, 1457034), (18, 1214195), (19, 1150290), (30, 728517), (38, 575145), (45, 485678), (57, 383430), (90, 242839), (95, 230058), (114, 191715), (171, 127810), (190, 115029), (285, 76686), (342, 63905), (570, 38343), (855, 25562), (1710, 12781)]