20442721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{397}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 23469264

約数和(自身を除く): 3026543

約数列:

[1, 13, 17, 221, 233, 397, 3029, 3961, 5161, 6749, 51493, 87737, 92501, 1202513, 1572517, 20442721]

約数ペア:

[(1, 20442721), (13, 1572517), (17, 1202513), (221, 92501), (233, 87737), (397, 51493), (3029, 6749), (3961, 5161)]