21864555

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3709}}^1$

素因数の和:3851

約数の個数: 24

約数和(自身を含む): 38198160

約数和(自身を除く): 16333605

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3709, 5895, 11127, 18545, 33381, 55635, 166905, 485879, 1457637, 2429395, 4372911, 7288185, 21864555]

約数ペア:

[(1, 21864555), (3, 7288185), (5, 4372911), (9, 2429395), (15, 1457637), (45, 485879), (131, 166905), (393, 55635), (655, 33381), (1179, 18545), (1965, 11127), (3709, 5895)]