21286342

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 40032000

約数和(自身を除く): 18745658

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 277, 499, 554, 998, 1939, 3047, 3493, 3878, 5489, 6094, 6986, 10978, 21329, 38423, 42658, 76846, 138223, 276446, 967561, 1520453, 1935122, 3040906, 10643171, 21286342]

約数ペア:

[(1, 21286342), (2, 10643171), (7, 3040906), (11, 1935122), (14, 1520453), (22, 967561), (77, 276446), (154, 138223), (277, 76846), (499, 42658), (554, 38423), (998, 21329), (1939, 10978), (3047, 6986), (3493, 6094), (3878, 5489)]