57115215

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20807}}^1$

素因数の和:20879

約数の個数: 24

約数和(自身を含む): 100627488

約数和(自身を除く): 43512273

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 20807, 62421, 104035, 187263, 312105, 936315, 1269227, 3807681, 6346135, 11423043, 19038405, 57115215]

約数ペア:

[(1, 57115215), (3, 19038405), (5, 11423043), (9, 6346135), (15, 3807681), (45, 1269227), (61, 936315), (183, 312105), (305, 187263), (549, 104035), (915, 62421), (2745, 20807)]