87121899

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{15149}}^1$

素因数の和:15232

約数の個数: 20

約数和(自身を含む): 131986800

約数和(自身を除く): 44864901

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 15149, 45447, 136341, 409023, 1075579, 1227069, 3226737, 9680211, 29040633, 87121899]

約数ペア:

[(1, 87121899), (3, 29040633), (9, 9680211), (27, 3226737), (71, 1227069), (81, 1075579), (213, 409023), (639, 136341), (1917, 45447), (5751, 15149)]