21937980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2879}}^1$

素因数の和:3018

約数の個数: 48

約数和(自身を含む): 61931520

約数和(自身を除く): 39993540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2879, 3810, 5758, 7620, 8637, 11516, 14395, 17274, 28790, 34548, 43185, 57580, 86370, 172740, 365633, 731266, 1096899, 1462532, 1828165, 2193798, 3656330, 4387596, 5484495, 7312660, 10968990, 21937980]

約数ペア:

[(1, 21937980), (2, 10968990), (3, 7312660), (4, 5484495), (5, 4387596), (6, 3656330), (10, 2193798), (12, 1828165), (15, 1462532), (20, 1096899), (30, 731266), (60, 365633), (127, 172740), (254, 86370), (381, 57580), (508, 43185), (635, 34548), (762, 28790), (1270, 17274), (1524, 14395), (1905, 11516), (2540, 8637), (2879, 7620), (3810, 5758)]