21793815

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3697}}^1$

素因数の和:3839

約数の個数: 24

約数和(自身を含む): 38074608

約数和(自身を除く): 16280793

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3697, 5895, 11091, 18485, 33273, 55455, 166365, 484307, 1452921, 2421535, 4358763, 7264605, 21793815]

約数ペア:

[(1, 21793815), (3, 7264605), (5, 4358763), (9, 2421535), (15, 1452921), (45, 484307), (131, 166365), (393, 55455), (655, 33273), (1179, 18485), (1965, 11091), (3697, 5895)]