18485590

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4289}}^1$

素因数の和:4727

約数の個数: 16

約数和(自身を含む): 33359040

約数和(自身を除く): 14873450

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4289, 4310, 8578, 21445, 42890, 1848559, 3697118, 9242795, 18485590]

約数ペア:

[(1, 18485590), (2, 9242795), (5, 3697118), (10, 1848559), (431, 42890), (862, 21445), (2155, 8578), (4289, 4310)]