21942180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9377}}^1$

素因数の和:9405

約数の個数: 72

約数和(自身を含む): 71685432

約数和(自身を除く): 49743252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9377, 18754, 28131, 37508, 46885, 56262, 84393, 93770, 112524, 121901, 140655, 168786, 187540, 243802, 281310, 337572, 365703, 421965, 487604, 562620, 609505, 731406, 843930, 1097109, 1219010, 1462812, 1687860, 1828515, 2194218, 2438020, 3657030, 4388436, 5485545, 7314060, 10971090, 21942180]

約数ペア:

[(1, 21942180), (2, 10971090), (3, 7314060), (4, 5485545), (5, 4388436), (6, 3657030), (9, 2438020), (10, 2194218), (12, 1828515), (13, 1687860), (15, 1462812), (18, 1219010), (20, 1097109), (26, 843930), (30, 731406), (36, 609505), (39, 562620), (45, 487604), (52, 421965), (60, 365703), (65, 337572), (78, 281310), (90, 243802), (117, 187540), (130, 168786), (156, 140655), (180, 121901), (195, 112524), (234, 93770), (260, 84393), (390, 56262), (468, 46885), (585, 37508), (780, 28131), (1170, 18754), (2340, 9377)]