20173345

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1776

約数の個数: 16

約数和(自身を含む): 25692480

約数和(自身を除く): 5519135

約数列:

[1, 5, 19, 95, 131, 655, 1621, 2489, 8105, 12445, 30799, 153995, 212351, 1061755, 4034669, 20173345]

約数ペア:

[(1, 20173345), (5, 4034669), (19, 1061755), (95, 212351), (131, 153995), (655, 30799), (1621, 12445), (2489, 8105)]