28976913

素因数分解:

$3^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1258

約数の個数: 32

約数和(自身を含む): 49459200

約数和(自身を除く): 20482287

約数列:

[1, 3, 7, 9, 21, 27, 63, 139, 189, 417, 973, 1103, 1251, 2919, 3309, 3753, 7721, 8757, 9927, 23163, 26271, 29781, 69489, 153317, 208467, 459951, 1073219, 1379853, 3219657, 4139559, 9658971, 28976913]

約数ペア:

[(1, 28976913), (3, 9658971), (7, 4139559), (9, 3219657), (21, 1379853), (27, 1073219), (63, 459951), (139, 208467), (189, 153317), (417, 69489), (973, 29781), (1103, 26271), (1251, 23163), (2919, 9927), (3309, 8757), (3753, 7721)]