19726647

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2137}}^1$

素因数の和:2338

約数の個数: 16

約数和(自身を含む): 28016352

約数和(自身を除く): 8289705

約数列:

[1, 3, 17, 51, 181, 543, 2137, 3077, 6411, 9231, 36329, 108987, 386797, 1160391, 6575549, 19726647]

約数ペア:

[(1, 19726647), (3, 6575549), (17, 1160391), (51, 386797), (181, 108987), (543, 36329), (2137, 9231), (3077, 6411)]