20806654892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{305980219}}^1$

素因数の和:305980240

約数の個数: 12

約数和(自身を含む): 38553507720

約数和(自身を除く): 17746852828

約数列:

[1, 2, 4, 17, 34, 68, 305980219, 611960438, 1223920876, 5201663723, 10403327446, 20806654892]

約数ペア:

[(1, 20806654892), (2, 10403327446), (4, 5201663723), (17, 1223920876), (34, 611960438), (68, 305980219)]