420724857

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{27407}}^1$

素因数の和:27477

約数の個数: 32

約数和(自身を含む): 694628352

約数和(自身を除く): 273903495

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 2193, 5117, 15351, 27407, 82221, 191849, 465919, 575547, 1178501, 1397757, 3261433, 3535503, 8249507, 9784299, 20034517, 24748521, 60103551, 140241619, 420724857]

約数ペア:

[(1, 420724857), (3, 140241619), (7, 60103551), (17, 24748521), (21, 20034517), (43, 9784299), (51, 8249507), (119, 3535503), (129, 3261433), (301, 1397757), (357, 1178501), (731, 575547), (903, 465919), (2193, 191849), (5117, 82221), (15351, 27407)]