21270660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1471}}^1$

素因数の和:1724

約数の個数: 48

約数和(自身を含む): 59845632

約数和(自身を除く): 38574972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 241, 482, 723, 964, 1205, 1446, 1471, 2410, 2892, 2942, 3615, 4413, 4820, 5884, 7230, 7355, 8826, 14460, 14710, 17652, 22065, 29420, 44130, 88260, 354511, 709022, 1063533, 1418044, 1772555, 2127066, 3545110, 4254132, 5317665, 7090220, 10635330, 21270660]

約数ペア:

[(1, 21270660), (2, 10635330), (3, 7090220), (4, 5317665), (5, 4254132), (6, 3545110), (10, 2127066), (12, 1772555), (15, 1418044), (20, 1063533), (30, 709022), (60, 354511), (241, 88260), (482, 44130), (723, 29420), (964, 22065), (1205, 17652), (1446, 14710), (1471, 14460), (2410, 8826), (2892, 7355), (2942, 7230), (3615, 5884), (4413, 4820)]