17994987

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{18013}}^1$

素因数の和:18059

約数の個数: 16

約数和(自身を含む): 27381280

約数和(自身を除く): 9386293

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 18013, 54039, 162117, 486351, 666481, 1999443, 5998329, 17994987]

約数ペア:

[(1, 17994987), (3, 5998329), (9, 1999443), (27, 666481), (37, 486351), (111, 162117), (333, 54039), (999, 18013)]