18742005

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3821}}^1$

素因数の和:3941

約数の個数: 24

約数和(自身を含む): 32792760

約数和(自身を除く): 14050755

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 3821, 4905, 11463, 19105, 34389, 57315, 171945, 416489, 1249467, 2082445, 3748401, 6247335, 18742005]

約数ペア:

[(1, 18742005), (3, 6247335), (5, 3748401), (9, 2082445), (15, 1249467), (45, 416489), (109, 171945), (327, 57315), (545, 34389), (981, 19105), (1635, 11463), (3821, 4905)]