20383524

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1785

約数の個数: 72

約数和(自身を含む): 60173568

約数和(自身を除く): 39790044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 47, 63, 84, 94, 126, 141, 188, 252, 282, 329, 423, 564, 658, 846, 987, 1316, 1692, 1721, 1974, 2961, 3442, 3948, 5163, 5922, 6884, 10326, 11844, 12047, 15489, 20652, 24094, 30978, 36141, 48188, 61956, 72282, 80887, 108423, 144564, 161774, 216846, 242661, 323548, 433692, 485322, 566209, 727983, 970644, 1132418, 1455966, 1698627, 2264836, 2911932, 3397254, 5095881, 6794508, 10191762, 20383524]

約数ペア:

[(1, 20383524), (2, 10191762), (3, 6794508), (4, 5095881), (6, 3397254), (7, 2911932), (9, 2264836), (12, 1698627), (14, 1455966), (18, 1132418), (21, 970644), (28, 727983), (36, 566209), (42, 485322), (47, 433692), (63, 323548), (84, 242661), (94, 216846), (126, 161774), (141, 144564), (188, 108423), (252, 80887), (282, 72282), (329, 61956), (423, 48188), (564, 36141), (658, 30978), (846, 24094), (987, 20652), (1316, 15489), (1692, 12047), (1721, 11844), (1974, 10326), (2961, 6884), (3442, 5922), (3948, 5163)]