21855757

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14939}}^1$

素因数の和:14976

約数の個数: 16

約数和(自身を含む): 28684800

約数和(自身を除く): 6829043

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14939, 104573, 164329, 283841, 1150303, 1986887, 3122251, 21855757]

約数ペア:

[(1, 21855757), (7, 3122251), (11, 1986887), (19, 1150303), (77, 283841), (133, 164329), (209, 104573), (1463, 14939)]