81249999

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{2617}}^1$

素因数の和:2830

約数の個数: 16

約数和(自身を含む): 110584320

約数和(自身を除く): 29334321

約数列:

[1, 3, 79, 131, 237, 393, 2617, 7851, 10349, 31047, 206743, 342827, 620229, 1028481, 27083333, 81249999]

約数ペア:

[(1, 81249999), (3, 27083333), (79, 1028481), (131, 620229), (237, 342827), (393, 206743), (2617, 31047), (7851, 10349)]