20715465

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32117}}^1$

素因数の和:32168

約数の個数: 16

約数和(自身を含む): 33916608

約数和(自身を除く): 13201143

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32117, 96351, 160585, 481755, 1381031, 4143093, 6905155, 20715465]

約数ペア:

[(1, 20715465), (3, 6905155), (5, 4143093), (15, 1381031), (43, 481755), (129, 160585), (215, 96351), (645, 32117)]