21103885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22571}}^1$

素因数の和:22604

約数の個数: 16

約数和(自身を含む): 29253312

約数和(自身を除く): 8149427

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22571, 112855, 248281, 383707, 1241405, 1918535, 4220777, 21103885]

約数ペア:

[(1, 21103885), (5, 4220777), (11, 1918535), (17, 1241405), (55, 383707), (85, 248281), (187, 112855), (935, 22571)]