27993259

素因数分解:

$7^4\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 20

約数和(自身を含む): 33275880

約数和(自身を除く): 5282621

約数列:

[1, 7, 49, 89, 131, 343, 623, 917, 2401, 4361, 6419, 11659, 30527, 44933, 81613, 213689, 314531, 571291, 3999037, 27993259]

約数ペア:

[(1, 27993259), (7, 3999037), (49, 571291), (89, 314531), (131, 213689), (343, 81613), (623, 44933), (917, 30527), (2401, 11659), (4361, 6419)]