21382660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82241}}^1$

素因数の和:82263

約数の個数: 24

約数和(自身を含む): 48358296

約数和(自身を除く): 26975636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 82241, 164482, 328964, 411205, 822410, 1069133, 1644820, 2138266, 4276532, 5345665, 10691330, 21382660]

約数ペア:

[(1, 21382660), (2, 10691330), (4, 5345665), (5, 4276532), (10, 2138266), (13, 1644820), (20, 1069133), (26, 822410), (52, 411205), (65, 328964), (130, 164482), (260, 82241)]