20851563074

素因数分解:

$2^1\times {\mathrm{521}}^1\times {\mathrm{20011097}}^1$

素因数の和:20011620

約数の個数: 8

約数和(自身を含む): 31337379468

約数和(自身を除く): 10485816394

約数列:

[1, 2, 521, 1042, 20011097, 40022194, 10425781537, 20851563074]

約数ペア:

[(1, 20851563074), (2, 10425781537), (521, 40022194), (1042, 20011097)]