245813757

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 386276352

約数和(自身を除く): 140462595

約数列:

[1, 3, 7, 21, 43, 129, 137, 301, 411, 903, 959, 1987, 2877, 5891, 5961, 13909, 17673, 41237, 41727, 85441, 123711, 256323, 272219, 598087, 816657, 1794261, 1905533, 5716599, 11705417, 35116251, 81937919, 245813757]

約数ペア:

[(1, 245813757), (3, 81937919), (7, 35116251), (21, 11705417), (43, 5716599), (129, 1905533), (137, 1794261), (301, 816657), (411, 598087), (903, 272219), (959, 256323), (1987, 123711), (2877, 85441), (5891, 41727), (5961, 41237), (13909, 17673)]