128306591

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{809}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 148780800

約数和(自身を除く): 20474209

約数列:

[1, 7, 139, 163, 809, 973, 1141, 5663, 22657, 112451, 131867, 158599, 787157, 923069, 18329513, 128306591]

約数ペア:

[(1, 128306591), (7, 18329513), (139, 923069), (163, 787157), (809, 158599), (973, 131867), (1141, 112451), (5663, 22657)]