18840735

素因数分解:

$3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2083}}^1$

素因数の和:2164

約数の個数: 32

約数和(自身を含む): 34010880

約数和(自身を除く): 15170145

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 135, 201, 335, 603, 1005, 1809, 2083, 3015, 6249, 9045, 10415, 18747, 31245, 56241, 93735, 139561, 281205, 418683, 697805, 1256049, 2093415, 3768147, 6280245, 18840735]

約数ペア:

[(1, 18840735), (3, 6280245), (5, 3768147), (9, 2093415), (15, 1256049), (27, 697805), (45, 418683), (67, 281205), (135, 139561), (201, 93735), (335, 56241), (603, 31245), (1005, 18747), (1809, 10415), (2083, 9045), (3015, 6249)]