18887193

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1481}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 29669640

約数和(自身を除く): 10782447

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1417, 1481, 4251, 4443, 12753, 13329, 19253, 57759, 161429, 173277, 484287, 1452861, 2098577, 6295731, 18887193]

約数ペア:

[(1, 18887193), (3, 6295731), (9, 2098577), (13, 1452861), (39, 484287), (109, 173277), (117, 161429), (327, 57759), (981, 19253), (1417, 13329), (1481, 12753), (4251, 4443)]