20177905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19309}}^1$

素因数の和:19344

約数の個数: 16

約数和(自身を含む): 27806400

約数和(自身を除く): 7628495

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19309, 96545, 212399, 366871, 1061995, 1834355, 4035581, 20177905]

約数ペア:

[(1, 20177905), (5, 4035581), (11, 1834355), (19, 1061995), (55, 366871), (95, 212399), (209, 96545), (1045, 19309)]