20139561

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{13241}}^1$

素因数の和:13273

約数の個数: 18

約数和(自身を含む): 31502718

約数和(自身を除く): 11363157

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 13241, 39723, 119169, 172133, 516399, 1549197, 2237729, 6713187, 20139561]

約数ペア:

[(1, 20139561), (3, 6713187), (9, 2237729), (13, 1549197), (39, 516399), (117, 172133), (169, 119169), (507, 39723), (1521, 13241)]