21990456

素因数分解:

$2^3\times 3^2\times {\mathrm{305423}}^1$

素因数の和:305435

約数の個数: 24

約数和(自身を含む): 59557680

約数和(自身を除く): 37567224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 305423, 610846, 916269, 1221692, 1832538, 2443384, 2748807, 3665076, 5497614, 7330152, 10995228, 21990456]

約数ペア:

[(1, 21990456), (2, 10995228), (3, 7330152), (4, 5497614), (6, 3665076), (8, 2748807), (9, 2443384), (12, 1832538), (18, 1221692), (24, 916269), (36, 610846), (72, 305423)]