18381789

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5197}}^1$

素因数の和:5337

約数の個数: 16

約数和(自身を含む): 27445440

約数和(自身を除く): 9063651

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5197, 15591, 46773, 140319, 680807, 2042421, 6127263, 18381789]

約数ペア:

[(1, 18381789), (3, 6127263), (9, 2042421), (27, 680807), (131, 140319), (393, 46773), (1179, 15591), (3537, 5197)]