20531577

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1117}}^1$

素因数の和:1688

約数の個数: 16

約数和(自身を含む): 29944512

約数和(自身を除く): 9412935

約数列:

[1, 3, 11, 33, 557, 1117, 1671, 3351, 6127, 12287, 18381, 36861, 622169, 1866507, 6843859, 20531577]

約数ペア:

[(1, 20531577), (3, 6843859), (11, 1866507), (33, 622169), (557, 36861), (1117, 18381), (1671, 12287), (3351, 6127)]