81761685

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{41609}}^1$

素因数の和:41748

約数の個数: 16

約数和(自身を含む): 131820480

約数和(自身を除く): 50058795

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 41609, 124827, 208045, 624135, 5450779, 16352337, 27253895, 81761685]

約数ペア:

[(1, 81761685), (3, 27253895), (5, 16352337), (15, 5450779), (131, 624135), (393, 208045), (655, 124827), (1965, 41609)]