18931465

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4129}}^1$

素因数の和:4272

約数の個数: 16

約数和(自身を含む): 26167680

約数和(自身を除く): 7236215

約数列:

[1, 5, 7, 35, 131, 655, 917, 4129, 4585, 20645, 28903, 144515, 540899, 2704495, 3786293, 18931465]

約数ペア:

[(1, 18931465), (5, 3786293), (7, 2704495), (35, 540899), (131, 144515), (655, 28903), (917, 20645), (4129, 4585)]