21459303

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 34080000

約数和(自身を除く): 12620697

約数列:

[1, 3, 9, 19, 27, 57, 59, 171, 177, 513, 531, 709, 1121, 1593, 2127, 3363, 6381, 10089, 13471, 19143, 30267, 40413, 41831, 121239, 125493, 363717, 376479, 794789, 1129437, 2384367, 7153101, 21459303]

約数ペア:

[(1, 21459303), (3, 7153101), (9, 2384367), (19, 1129437), (27, 794789), (57, 376479), (59, 363717), (171, 125493), (177, 121239), (513, 41831), (531, 40413), (709, 30267), (1121, 19143), (1593, 13471), (2127, 10089), (3363, 6381)]