19766257

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 24808680

約数和(自身を除く): 5042423

約数列:

[1, 7, 17, 49, 61, 119, 389, 427, 833, 1037, 2723, 2989, 6613, 7259, 19061, 23729, 46291, 50813, 166103, 324037, 403393, 1162721, 2823751, 19766257]

約数ペア:

[(1, 19766257), (7, 2823751), (17, 1162721), (49, 403393), (61, 324037), (119, 166103), (389, 50813), (427, 46291), (833, 23729), (1037, 19061), (2723, 7259), (2989, 6613)]