28691468

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{42443}}^1$

素因数の和:42473

約数の個数: 18

約数和(自身を含む): 54370764

約数和(自身を除く): 25679296

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 42443, 84886, 169772, 551759, 1103518, 2207036, 7172867, 14345734, 28691468]

約数ペア:

[(1, 28691468), (2, 14345734), (4, 7172867), (13, 2207036), (26, 1103518), (52, 551759), (169, 169772), (338, 84886), (676, 42443)]