20916423

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19207}}^1$

素因数の和:19235

約数の個数: 18

約数和(自身を含む): 33210632

約数和(自身を除く): 12294209

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19207, 57621, 172863, 211277, 633831, 1901493, 2324047, 6972141, 20916423]

約数ペア:

[(1, 20916423), (3, 6972141), (9, 2324047), (11, 1901493), (33, 633831), (99, 211277), (121, 172863), (363, 57621), (1089, 19207)]