128512821

素因数分解:

$3^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1\times {\mathrm{971}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 173233728

約数和(自身を除く): 44720907

約数列:

[1, 3, 157, 281, 471, 843, 971, 2913, 44117, 132351, 152447, 272851, 457341, 818553, 42837607, 128512821]

約数ペア:

[(1, 128512821), (3, 42837607), (157, 818553), (281, 457341), (471, 272851), (843, 152447), (971, 132351), (2913, 44117)]