21322890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2999}}^1$

素因数の和:3091

約数の個数: 48

約数和(自身を含む): 56160000

約数和(自身を除く): 34837110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2999, 3555, 5998, 7110, 8997, 14995, 17994, 26991, 29990, 44985, 53982, 89970, 134955, 236921, 269910, 473842, 710763, 1184605, 1421526, 2132289, 2369210, 3553815, 4264578, 7107630, 10661445, 21322890]

約数ペア:

[(1, 21322890), (2, 10661445), (3, 7107630), (5, 4264578), (6, 3553815), (9, 2369210), (10, 2132289), (15, 1421526), (18, 1184605), (30, 710763), (45, 473842), (79, 269910), (90, 236921), (158, 134955), (237, 89970), (395, 53982), (474, 44985), (711, 29990), (790, 26991), (1185, 17994), (1422, 14995), (2370, 8997), (2999, 7110), (3555, 5998)]