81304013

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{15889}}^1$

素因数の和:15956

約数の個数: 16

約数和(自身を含む): 100679040

約数和(自身を除く): 19375027

約数列:

[1, 7, 17, 43, 119, 301, 731, 5117, 15889, 111223, 270113, 683227, 1890791, 4782589, 11614859, 81304013]

約数ペア:

[(1, 81304013), (7, 11614859), (17, 4782589), (43, 1890791), (119, 683227), (301, 270113), (731, 111223), (5117, 15889)]