20687657

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 22825152

約数和(自身を除く): 2137495

約数列:

[1, 17, 41, 67, 443, 697, 1139, 2747, 7531, 18163, 29681, 46699, 308771, 504577, 1216921, 20687657]

約数ペア:

[(1, 20687657), (17, 1216921), (41, 504577), (67, 308771), (443, 46699), (697, 29681), (1139, 18163), (2747, 7531)]