21210180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8221}}^1$

素因数の和:8276

約数の個数: 48

約数和(自身を含む): 60777024

約数和(自身を除く): 39566844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8221, 16442, 24663, 32884, 41105, 49326, 82210, 98652, 123315, 164420, 246630, 353503, 493260, 707006, 1060509, 1414012, 1767515, 2121018, 3535030, 4242036, 5302545, 7070060, 10605090, 21210180]

約数ペア:

[(1, 21210180), (2, 10605090), (3, 7070060), (4, 5302545), (5, 4242036), (6, 3535030), (10, 2121018), (12, 1767515), (15, 1414012), (20, 1060509), (30, 707006), (43, 493260), (60, 353503), (86, 246630), (129, 164420), (172, 123315), (215, 98652), (258, 82210), (430, 49326), (516, 41105), (645, 32884), (860, 24663), (1290, 16442), (2580, 8221)]