18672865

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 4390175

約数列:

[1, 5, 47, 181, 235, 439, 905, 2195, 8507, 20633, 42535, 79459, 103165, 397295, 3734573, 18672865]

約数ペア:

[(1, 18672865), (5, 3734573), (47, 397295), (181, 103165), (235, 79459), (439, 42535), (905, 20633), (2195, 8507)]