21375189

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3041}}^1$

素因数の和:3129

約数の個数: 24

約数和(自身を含む): 34167744

約数和(自身を除く): 12792555

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 3041, 7029, 9123, 27369, 33451, 100353, 215911, 301059, 647733, 1943199, 2375021, 7125063, 21375189]

約数ペア:

[(1, 21375189), (3, 7125063), (9, 2375021), (11, 1943199), (33, 647733), (71, 301059), (99, 215911), (213, 100353), (639, 33451), (781, 27369), (2343, 9123), (3041, 7029)]