208700518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{20219}}^1$

素因数の和:20631

約数の個数: 16

約数和(自身を含む): 337997520

約数和(自身を除く): 129297002

約数列:

[1, 2, 13, 26, 397, 794, 5161, 10322, 20219, 40438, 262847, 525694, 8026943, 16053886, 104350259, 208700518]

約数ペア:

[(1, 208700518), (2, 104350259), (13, 16053886), (26, 8026943), (397, 525694), (794, 262847), (5161, 40438), (10322, 20219)]