21468309

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 30979872

約数和(自身を除く): 9511563

約数列:

[1, 3, 19, 43, 57, 129, 361, 461, 817, 1083, 1383, 2451, 8759, 15523, 19823, 26277, 46569, 59469, 166421, 376637, 499263, 1129911, 7156103, 21468309]

約数ペア:

[(1, 21468309), (3, 7156103), (19, 1129911), (43, 499263), (57, 376637), (129, 166421), (361, 59469), (461, 46569), (817, 26277), (1083, 19823), (1383, 15523), (2451, 8759)]