21057335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{11171}}^1$

素因数の和:11218

約数の個数: 16

約数和(自身を含む): 28153440

約数和(自身を除く): 7096105

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 11171, 55855, 145223, 323959, 726115, 1619795, 4211467, 21057335]

約数ペア:

[(1, 21057335), (5, 4211467), (13, 1619795), (29, 726115), (65, 323959), (145, 145223), (377, 55855), (1885, 11171)]