20664595

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4507}}^1$

素因数の和:4650

約数の個数: 16

約数和(自身を含む): 28562688

約数和(自身を除く): 7898093

約数列:

[1, 5, 7, 35, 131, 655, 917, 4507, 4585, 22535, 31549, 157745, 590417, 2952085, 4132919, 20664595]

約数ペア:

[(1, 20664595), (5, 4132919), (7, 2952085), (35, 590417), (131, 157745), (655, 31549), (917, 22535), (4507, 4585)]