20901564

素因数分解:

$2^2\times 3^4\times {\mathrm{31}}^1\times {\mathrm{2081}}^1$

素因数の和:2128

約数の個数: 60

約数和(自身を含む): 56430528

約数和(自身を除く): 35528964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 93, 108, 124, 162, 186, 279, 324, 372, 558, 837, 1116, 1674, 2081, 2511, 3348, 4162, 5022, 6243, 8324, 10044, 12486, 18729, 24972, 37458, 56187, 64511, 74916, 112374, 129022, 168561, 193533, 224748, 258044, 337122, 387066, 580599, 674244, 774132, 1161198, 1741797, 2322396, 3483594, 5225391, 6967188, 10450782, 20901564]

約数ペア:

[(1, 20901564), (2, 10450782), (3, 6967188), (4, 5225391), (6, 3483594), (9, 2322396), (12, 1741797), (18, 1161198), (27, 774132), (31, 674244), (36, 580599), (54, 387066), (62, 337122), (81, 258044), (93, 224748), (108, 193533), (124, 168561), (162, 129022), (186, 112374), (279, 74916), (324, 64511), (372, 56187), (558, 37458), (837, 24972), (1116, 18729), (1674, 12486), (2081, 10044), (2511, 8324), (3348, 6243), (4162, 5022)]