18889887

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{709}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 6874593

約数列:

[1, 3, 83, 107, 249, 321, 709, 2127, 8881, 26643, 58847, 75863, 176541, 227589, 6296629, 18889887]

約数ペア:

[(1, 18889887), (3, 6296629), (83, 227589), (107, 176541), (249, 75863), (321, 58847), (709, 26643), (2127, 8881)]