18087500879

素因数分解:

$7^2\times {\mathrm{6451}}^1\times {\mathrm{57221}}^1$

素因数の和:63686

約数の個数: 12

約数和(自身を含む): 21044191608

約数和(自身を除く): 2956690729

約数列:

[1, 7, 49, 6451, 45157, 57221, 316099, 400547, 2803829, 369132671, 2583928697, 18087500879]

約数ペア:

[(1, 18087500879), (7, 2583928697), (49, 369132671), (6451, 2803829), (45157, 400547), (57221, 316099)]