21754216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5749}}^1$

素因数の和:5809

約数の個数: 32

約数和(自身を含む): 45540000

約数和(自身を除く): 23785784

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5749, 11498, 22996, 45992, 63239, 126478, 247207, 252956, 494414, 505912, 988828, 1977656, 2719277, 5438554, 10877108, 21754216]

約数ペア:

[(1, 21754216), (2, 10877108), (4, 5438554), (8, 2719277), (11, 1977656), (22, 988828), (43, 505912), (44, 494414), (86, 252956), (88, 247207), (172, 126478), (344, 63239), (473, 45992), (946, 22996), (1892, 11498), (3784, 5749)]