21451508

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{2441}}^1$

素因数の和:2484

約数の個数: 24

約数和(自身を含む): 40683720

約数和(自身を除く): 19232212

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 2197, 2441, 4394, 4882, 8788, 9764, 31733, 63466, 126932, 412529, 825058, 1650116, 5362877, 10725754, 21451508]

約数ペア:

[(1, 21451508), (2, 10725754), (4, 5362877), (13, 1650116), (26, 825058), (52, 412529), (169, 126932), (338, 63466), (676, 31733), (2197, 9764), (2441, 8788), (4394, 4882)]