21906666

素因数分解:

$2^1\times 3^3\times {\mathrm{405679}}^1$

素因数の和:405690

約数の個数: 16

約数和(自身を含む): 48681600

約数和(自身を除く): 26774934

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 405679, 811358, 1217037, 2434074, 3651111, 7302222, 10953333, 21906666]

約数ペア:

[(1, 21906666), (2, 10953333), (3, 7302222), (6, 3651111), (9, 2434074), (18, 1217037), (27, 811358), (54, 405679)]