208640439

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{194809}}^1$

素因数の和:194839

約数の個数: 24

約数和(自身を含む): 364684320

約数和(自身を除く): 156043881

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 194809, 584427, 1363663, 1753281, 3311753, 4090989, 9935259, 12272967, 23182271, 29805777, 69546813, 208640439]

約数ペア:

[(1, 208640439), (3, 69546813), (7, 29805777), (9, 23182271), (17, 12272967), (21, 9935259), (51, 4090989), (63, 3311753), (119, 1753281), (153, 1363663), (357, 584427), (1071, 194809)]