21239086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 15969074

約数列:

[1, 2, 11, 17, 22, 34, 109, 187, 218, 374, 521, 1042, 1199, 1853, 2398, 3706, 5731, 8857, 11462, 17714, 20383, 40766, 56789, 97427, 113578, 194854, 624679, 965413, 1249358, 1930826, 10619543, 21239086]

約数ペア:

[(1, 21239086), (2, 10619543), (11, 1930826), (17, 1249358), (22, 965413), (34, 624679), (109, 194854), (187, 113578), (218, 97427), (374, 56789), (521, 40766), (1042, 20383), (1199, 17714), (1853, 11462), (2398, 8857), (3706, 5731)]