2018991715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1001981}}^1$

素因数の和:1002030

約数の個数: 16

約数和(自身を含む): 2693327616

約数和(自身を除く): 674335901

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 1001981, 5009905, 13025753, 31061411, 65128765, 155307055, 403798343, 2018991715]

約数ペア:

[(1, 2018991715), (5, 403798343), (13, 155307055), (31, 65128765), (65, 31061411), (155, 13025753), (403, 5009905), (2015, 1001981)]