20668142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15401}}^1$

素因数の和:15475

約数の個数: 16

約数和(自身を含む): 34377264

約数和(自身を除く): 13709122

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15401, 30802, 169411, 338822, 939461, 1878922, 10334071, 20668142]

約数ペア:

[(1, 20668142), (2, 10334071), (11, 1878922), (22, 939461), (61, 338822), (122, 169411), (671, 30802), (1342, 15401)]