205648317

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{75913}}^1$

素因数の和:75969

約数の個数: 24

約数和(自身を含む): 347382464

約数和(自身を除く): 141734147

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 75913, 227739, 531391, 683217, 1594173, 3264259, 4782519, 9792777, 22849813, 29378331, 68549439, 205648317]

約数ペア:

[(1, 205648317), (3, 68549439), (7, 29378331), (9, 22849813), (21, 9792777), (43, 4782519), (63, 3264259), (129, 1594173), (301, 683217), (387, 531391), (903, 227739), (2709, 75913)]