21162915

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5953}}^1$

素因数の和:6043

約数の個数: 24

約数和(自身を含む): 37152960

約数和(自身を除く): 15990045

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 5953, 17859, 29765, 53577, 89295, 267885, 470287, 1410861, 2351435, 4232583, 7054305, 21162915]

約数ペア:

[(1, 21162915), (3, 7054305), (5, 4232583), (9, 2351435), (15, 1410861), (45, 470287), (79, 267885), (237, 89295), (395, 53577), (711, 29765), (1185, 17859), (3555, 5953)]