68928291

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{401}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 101593440

約数和(自身を除く): 32665149

約数列:

[1, 3, 9, 71, 213, 269, 401, 639, 807, 1203, 2421, 3609, 19099, 28471, 57297, 85413, 107869, 171891, 256239, 323607, 970821, 7658699, 22976097, 68928291]

約数ペア:

[(1, 68928291), (3, 22976097), (9, 7658699), (71, 970821), (213, 323607), (269, 256239), (401, 171891), (639, 107869), (807, 85413), (1203, 57297), (2421, 28471), (3609, 19099)]