21327999

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{727}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 35782656

約数和(自身を除く): 14454657

約数列:

[1, 3, 7, 11, 21, 33, 77, 127, 231, 381, 727, 889, 1397, 2181, 2667, 4191, 5089, 7997, 9779, 15267, 23991, 29337, 55979, 92329, 167937, 276987, 646303, 1015619, 1938909, 3046857, 7109333, 21327999]

約数ペア:

[(1, 21327999), (3, 7109333), (7, 3046857), (11, 1938909), (21, 1015619), (33, 646303), (77, 276987), (127, 167937), (231, 92329), (381, 55979), (727, 29337), (889, 23991), (1397, 15267), (2181, 9779), (2667, 7997), (4191, 5089)]