18281665

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3697}}^1$

素因数の和:3768

約数の個数: 16

約数和(自身を含む): 23430528

約数和(自身を除く): 5148863

約数列:

[1, 5, 23, 43, 115, 215, 989, 3697, 4945, 18485, 85031, 158971, 425155, 794855, 3656333, 18281665]

約数ペア:

[(1, 18281665), (5, 3656333), (23, 794855), (43, 425155), (115, 158971), (215, 85031), (989, 18485), (3697, 4945)]