243992021

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{7817}}^1$

素因数の和:7858

約数の個数: 20

約数和(自身を含む): 306575052

約数和(自身を除く): 62583031

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 7817, 31213, 54719, 101621, 383033, 711347, 2681231, 4979429, 18768617, 34856003, 243992021]

約数ペア:

[(1, 243992021), (7, 34856003), (13, 18768617), (49, 4979429), (91, 2681231), (343, 711347), (637, 383033), (2401, 101621), (4459, 54719), (7817, 31213)]