18165789

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1637}}^1$

素因数の和:1786

約数の個数: 20

約数和(自身を含む): 27351324

約数和(自身を除く): 9185535

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1637, 3699, 4911, 11097, 14733, 44199, 132597, 224269, 672807, 2018421, 6055263, 18165789]

約数ペア:

[(1, 18165789), (3, 6055263), (9, 2018421), (27, 672807), (81, 224269), (137, 132597), (411, 44199), (1233, 14733), (1637, 11097), (3699, 4911)]