856899

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 20

約数和(自身を含む): 1306800

約数和(自身を除く): 449901

約数列:

[1, 3, 9, 27, 71, 81, 149, 213, 447, 639, 1341, 1917, 4023, 5751, 10579, 12069, 31737, 95211, 285633, 856899]

約数ペア:

[(1, 856899), (3, 285633), (9, 95211), (27, 31737), (71, 12069), (81, 10579), (149, 5751), (213, 4023), (447, 1917), (639, 1341)]