20345090087

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{711143}}^1$

素因数の和:711278

約数の個数: 16

約数和(自身を含む): 23985464832

約数和(自身を除く): 3640374745

約数列:

[1, 7, 61, 67, 427, 469, 4087, 28609, 711143, 4978001, 43379723, 47646581, 303658061, 333526067, 2906441441, 20345090087]

約数ペア:

[(1, 20345090087), (7, 2906441441), (61, 333526067), (67, 303658061), (427, 47646581), (469, 43379723), (4087, 4978001), (28609, 711143)]