18982555

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:606

約数の個数: 16

約数和(自身を含む): 23325984

約数和(自身を除く): 4343429

約数列:

[1, 5, 73, 131, 365, 397, 655, 1985, 9563, 28981, 47815, 52007, 144905, 260035, 3796511, 18982555]

約数ペア:

[(1, 18982555), (5, 3796511), (73, 260035), (131, 144905), (365, 52007), (397, 47815), (655, 28981), (1985, 9563)]