16987455

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5471}}^1$

素因数の和:5508

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 14531265

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 5471, 16413, 27355, 49239, 82065, 125833, 147717, 246195, 377499, 629165, 738585, 1132497, 1887495, 3397491, 5662485, 16987455]

約数ペア:

[(1, 16987455), (3, 5662485), (5, 3397491), (9, 1887495), (15, 1132497), (23, 738585), (27, 629165), (45, 377499), (69, 246195), (115, 147717), (135, 125833), (207, 82065), (345, 49239), (621, 27355), (1035, 16413), (3105, 5471)]