18131128

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 34875360

約数和(自身を除く): 16744232

約数列:

[1, 2, 4, 8, 71, 137, 142, 233, 274, 284, 466, 548, 568, 932, 1096, 1864, 9727, 16543, 19454, 31921, 33086, 38908, 63842, 66172, 77816, 127684, 132344, 255368, 2266391, 4532782, 9065564, 18131128]

約数ペア:

[(1, 18131128), (2, 9065564), (4, 4532782), (8, 2266391), (71, 255368), (137, 132344), (142, 127684), (233, 77816), (274, 66172), (284, 63842), (466, 38908), (548, 33086), (568, 31921), (932, 19454), (1096, 16543), (1864, 9727)]