18747621

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{29339}}^1$

素因数の和:29416

約数の個数: 12

約数和(自身を含む): 27462240

約数和(自身を除く): 8714619

約数列:

[1, 3, 9, 71, 213, 639, 29339, 88017, 264051, 2083069, 6249207, 18747621]

約数ペア:

[(1, 18747621), (3, 6249207), (9, 2083069), (71, 264051), (213, 88017), (639, 29339)]