20657284

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2731}}^1$

素因数の和:2827

約数の個数: 24

約数和(自身を含む): 37942016

約数和(自身を除く): 17284732

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2731, 3782, 5462, 7564, 10924, 84661, 166591, 169322, 333182, 338644, 666364, 5164321, 10328642, 20657284]

約数ペア:

[(1, 20657284), (2, 10328642), (4, 5164321), (31, 666364), (61, 338644), (62, 333182), (122, 169322), (124, 166591), (244, 84661), (1891, 10924), (2731, 7564), (3782, 5462)]