20917376207

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{1277}}^1\times {\mathrm{180001}}^1$

素因数の和:181298

約数の個数: 16

約数和(自身を含む): 25764766272

約数和(自身を除く): 4847390065

約数列:

[1, 7, 13, 91, 1277, 8939, 16601, 116207, 180001, 1260007, 2340013, 16380091, 229861277, 1609028939, 2988196601, 20917376207]

約数ペア:

[(1, 20917376207), (7, 2988196601), (13, 1609028939), (91, 229861277), (1277, 16380091), (8939, 2340013), (16601, 1260007), (116207, 180001)]