28905591

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 46801152

約数和(自身を除く): 17895561

約数列:

[1, 3, 11, 13, 33, 39, 71, 73, 143, 169, 213, 219, 429, 507, 781, 803, 923, 949, 1859, 2343, 2409, 2769, 2847, 5183, 5577, 10153, 10439, 11999, 12337, 15549, 30459, 31317, 35997, 37011, 57013, 67379, 131989, 135707, 171039, 202137, 395967, 407121, 741169, 875927, 2223507, 2627781, 9635197, 28905591]

約数ペア:

[(1, 28905591), (3, 9635197), (11, 2627781), (13, 2223507), (33, 875927), (39, 741169), (71, 407121), (73, 395967), (143, 202137), (169, 171039), (213, 135707), (219, 131989), (429, 67379), (507, 57013), (781, 37011), (803, 35997), (923, 31317), (949, 30459), (1859, 15549), (2343, 12337), (2409, 11999), (2769, 10439), (2847, 10153), (5183, 5577)]