381807999

素因数分解:

$3^4\times {\mathrm{907}}^1\times {\mathrm{5197}}^1$

素因数の和:6116

約数の個数: 20

約数和(自身を含む): 571093864

約数和(自身を除く): 189285865

約数列:

[1, 3, 9, 27, 81, 907, 2721, 5197, 8163, 15591, 24489, 46773, 73467, 140319, 420957, 4713679, 14141037, 42423111, 127269333, 381807999]

約数ペア:

[(1, 381807999), (3, 127269333), (9, 42423111), (27, 14141037), (81, 4713679), (907, 420957), (2721, 140319), (5197, 73467), (8163, 46773), (15591, 24489)]