21089684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68473}}^1$

素因数の和:68495

約数の個数: 24

約数和(自身を含む): 46014528

約数和(自身を除く): 24924844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68473, 136946, 273892, 479311, 753203, 958622, 1506406, 1917244, 3012812, 5272421, 10544842, 21089684]

約数ペア:

[(1, 21089684), (2, 10544842), (4, 5272421), (7, 3012812), (11, 1917244), (14, 1506406), (22, 958622), (28, 753203), (44, 479311), (77, 273892), (154, 136946), (308, 68473)]