18523138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 24

約数和(自身を含む): 29961360

約数和(自身を除く): 11438222

約数列:

[1, 2, 19, 38, 61, 122, 131, 262, 1159, 2318, 2489, 3721, 4978, 7442, 7991, 15982, 70699, 141398, 151829, 303658, 487451, 974902, 9261569, 18523138]

約数ペア:

[(1, 18523138), (2, 9261569), (19, 974902), (38, 487451), (61, 303658), (122, 151829), (131, 141398), (262, 70699), (1159, 15982), (2318, 7991), (2489, 7442), (3721, 4978)]