205989651

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{76039}}^1$

素因数の和:76095

約数の個数: 24

約数和(自身を含む): 347959040

約数和(自身を除く): 141969389

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 76039, 228117, 532273, 684351, 1596819, 3269677, 4790457, 9809031, 22887739, 29427093, 68663217, 205989651]

約数ペア:

[(1, 205989651), (3, 68663217), (7, 29427093), (9, 22887739), (21, 9809031), (43, 4790457), (63, 3269677), (129, 1596819), (301, 684351), (387, 532273), (903, 228117), (2709, 76039)]