20640442

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1\times {\mathrm{829}}^1$

素因数の和:1101

約数の個数: 16

約数和(自身を含む): 31672800

約数和(自身を除く): 11032358

約数列:

[1, 2, 59, 118, 211, 422, 829, 1658, 12449, 24898, 48911, 97822, 174919, 349838, 10320221, 20640442]

約数ペア:

[(1, 20640442), (2, 10320221), (59, 349838), (118, 174919), (211, 97822), (422, 48911), (829, 24898), (1658, 12449)]