21250428

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41183}}^1$

素因数の和:41233

約数の個数: 24

約数和(自身を含む): 50738688

約数和(自身を除く): 29488260

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41183, 82366, 123549, 164732, 247098, 494196, 1770869, 3541738, 5312607, 7083476, 10625214, 21250428]

約数ペア:

[(1, 21250428), (2, 10625214), (3, 7083476), (4, 5312607), (6, 3541738), (12, 1770869), (43, 494196), (86, 247098), (129, 164732), (172, 123549), (258, 82366), (516, 41183)]