19787439

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 32693760

約数和(自身を除く): 12906321

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1289, 2193, 3867, 5117, 9023, 15351, 21913, 27069, 55427, 65739, 153391, 166281, 387989, 460173, 942259, 1163967, 2826777, 6595813, 19787439]

約数ペア:

[(1, 19787439), (3, 6595813), (7, 2826777), (17, 1163967), (21, 942259), (43, 460173), (51, 387989), (119, 166281), (129, 153391), (301, 65739), (357, 55427), (731, 27069), (903, 21913), (1289, 15351), (2193, 9023), (3867, 5117)]