21273580

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{5569}}^1$

素因数の和:5769

約数の個数: 24

約数和(自身を含む): 44916480

約数和(自身を除く): 23642900

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 5569, 11138, 22276, 27845, 55690, 111380, 1063679, 2127358, 4254716, 5318395, 10636790, 21273580]

約数ペア:

[(1, 21273580), (2, 10636790), (4, 5318395), (5, 4254716), (10, 2127358), (20, 1063679), (191, 111380), (382, 55690), (764, 27845), (955, 22276), (1910, 11138), (3820, 5569)]