1285386487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{16879}}^1$

素因数の和:16963

約数の個数: 32

約数和(自身を含む): 1711226880

約数和(自身を除く): 425840393

約数列:

[1, 7, 11, 23, 43, 77, 161, 253, 301, 473, 989, 1771, 3311, 6923, 10879, 16879, 76153, 118153, 185669, 388217, 725797, 1299683, 2717519, 4270387, 5080579, 7983767, 16693331, 29892709, 55886369, 116853317, 183626641, 1285386487]

約数ペア:

[(1, 1285386487), (7, 183626641), (11, 116853317), (23, 55886369), (43, 29892709), (77, 16693331), (161, 7983767), (253, 5080579), (301, 4270387), (473, 2717519), (989, 1299683), (1771, 725797), (3311, 388217), (6923, 185669), (10879, 118153), (16879, 76153)]