20129127916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{668209}}^1$

素因数の和:668673

約数の個数: 24

約数和(自身を含む): 37382340240

約数和(自身を除く): 17253212324

約数列:

[1, 2, 4, 17, 34, 68, 443, 886, 1772, 7531, 15062, 30124, 668209, 1336418, 2672836, 11359553, 22719106, 45438212, 296016587, 592033174, 1184066348, 5032281979, 10064563958, 20129127916]

約数ペア:

[(1, 20129127916), (2, 10064563958), (4, 5032281979), (17, 1184066348), (34, 592033174), (68, 296016587), (443, 45438212), (886, 22719106), (1772, 11359553), (7531, 2672836), (15062, 1336418), (30124, 668209)]