21987438

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4217}}^1$

素因数の和:4312

約数の個数: 32

約数和(自身を含む): 48591360

約数和(自身を除く): 26603922

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 79, 158, 237, 474, 869, 1738, 2607, 4217, 5214, 8434, 12651, 25302, 46387, 92774, 139161, 278322, 333143, 666286, 999429, 1998858, 3664573, 7329146, 10993719, 21987438]

約数ペア:

[(1, 21987438), (2, 10993719), (3, 7329146), (6, 3664573), (11, 1998858), (22, 999429), (33, 666286), (66, 333143), (79, 278322), (158, 139161), (237, 92774), (474, 46387), (869, 25302), (1738, 12651), (2607, 8434), (4217, 5214)]