18540138

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{71861}}^1$

素因数の和:71909

約数の個数: 16

約数和(自身を含む): 37943136

約数和(自身を除く): 19402998

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 71861, 143722, 215583, 431166, 3090023, 6180046, 9270069, 18540138]

約数ペア:

[(1, 18540138), (2, 9270069), (3, 6180046), (6, 3090023), (43, 431166), (86, 215583), (129, 143722), (258, 71861)]