18090805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 23091264

約数和(自身を除く): 5000459

約数列:

[1, 5, 17, 85, 331, 643, 1655, 3215, 5627, 10931, 28135, 54655, 212833, 1064165, 3618161, 18090805]

約数ペア:

[(1, 18090805), (5, 3618161), (17, 1064165), (85, 212833), (331, 54655), (643, 28135), (1655, 10931), (3215, 5627)]