20191636

素因数分解:

$2^2\times {\mathrm{167}}^2\times {\mathrm{181}}^1$

素因数の和:519

約数の個数: 18

約数和(自身を含む): 35744618

約数和(自身を除く): 15552982

約数列:

[1, 2, 4, 167, 181, 334, 362, 668, 724, 27889, 30227, 55778, 60454, 111556, 120908, 5047909, 10095818, 20191636]

約数ペア:

[(1, 20191636), (2, 10095818), (4, 5047909), (167, 120908), (181, 111556), (334, 60454), (362, 55778), (668, 30227), (724, 27889)]