120717891

素因数分解:

$3^3\times 7^1\times {\mathrm{638719}}^1$

素因数の和:638735

約数の個数: 16

約数和(自身を含む): 204390400

約数和(自身を除く): 83672509

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 638719, 1916157, 4471033, 5748471, 13413099, 17245413, 40239297, 120717891]

約数ペア:

[(1, 120717891), (3, 40239297), (7, 17245413), (9, 13413099), (21, 5748471), (27, 4471033), (63, 1916157), (189, 638719)]