21904749

素因数分解:

$3^5\times {\mathrm{109}}^1\times {\mathrm{827}}^1$

素因数の和:951

約数の個数: 24

約数和(自身を含む): 33153120

約数和(自身を除く): 11248371

約数列:

[1, 3, 9, 27, 81, 109, 243, 327, 827, 981, 2481, 2943, 7443, 8829, 22329, 26487, 66987, 90143, 200961, 270429, 811287, 2433861, 7301583, 21904749]

約数ペア:

[(1, 21904749), (3, 7301583), (9, 2433861), (27, 811287), (81, 270429), (109, 200961), (243, 90143), (327, 66987), (827, 26487), (981, 22329), (2481, 8829), (2943, 7443)]