42478261

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 49392000

約数和(自身を除く): 6913739

約数列:

[1, 7, 139, 149, 293, 973, 1043, 2051, 20711, 40727, 43657, 144977, 285089, 305599, 6068323, 42478261]

約数ペア:

[(1, 42478261), (7, 6068323), (139, 305599), (149, 285089), (293, 144977), (973, 43657), (1043, 40727), (2051, 20711)]