20299139

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3967}}^1$

素因数の和:4034

約数の個数: 16

約数和(自身を含む): 25141248

約数和(自身を除く): 4842109

約数列:

[1, 7, 17, 43, 119, 301, 731, 3967, 5117, 27769, 67439, 170581, 472073, 1194067, 2899877, 20299139]

約数ペア:

[(1, 20299139), (7, 2899877), (17, 1194067), (43, 472073), (119, 170581), (301, 67439), (731, 27769), (3967, 5117)]