18489355

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3739}}^1$

素因数の和:3810

約数の個数: 16

約数和(自身を含む): 23696640

約数和(自身を除く): 5207285

約数列:

[1, 5, 23, 43, 115, 215, 989, 3739, 4945, 18695, 85997, 160777, 429985, 803885, 3697871, 18489355]

約数ペア:

[(1, 18489355), (5, 3697871), (23, 803885), (43, 429985), (115, 160777), (215, 85997), (989, 18695), (3739, 4945)]