18721508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{6793}}^1$

素因数の和:6863

約数の個数: 24

約数和(自身を含む): 35953848

約数和(自身を除く): 17232340

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 6793, 13586, 27172, 88309, 176618, 353236, 360029, 720058, 1440116, 4680377, 9360754, 18721508]

約数ペア:

[(1, 18721508), (2, 9360754), (4, 4680377), (13, 1440116), (26, 720058), (52, 360029), (53, 353236), (106, 176618), (212, 88309), (689, 27172), (1378, 13586), (2756, 6793)]