21810866

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{141629}}^1$

素因数の和:141649

約数の個数: 16

約数和(自身を含む): 40789440

約数和(自身を除く): 18978574

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 141629, 283258, 991403, 1557919, 1982806, 3115838, 10905433, 21810866]

約数ペア:

[(1, 21810866), (2, 10905433), (7, 3115838), (11, 1982806), (14, 1557919), (22, 991403), (77, 283258), (154, 141629)]