18297721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 20482000

約数和(自身を除く): 2184279

約数列:

[1, 13, 37, 109, 349, 481, 1417, 4033, 4537, 12913, 38041, 52429, 167869, 494533, 1407517, 18297721]

約数ペア:

[(1, 18297721), (13, 1407517), (37, 494533), (109, 167869), (349, 52429), (481, 38041), (1417, 12913), (4033, 4537)]