28449421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 38723328

約数和(自身を除く): 10273907

約数列:

[1, 7, 11, 13, 77, 91, 97, 143, 293, 679, 1001, 1067, 1261, 2051, 3223, 3809, 7469, 8827, 13871, 22561, 26663, 28421, 41899, 97097, 198947, 293293, 312631, 369473, 2188417, 2586311, 4064203, 28449421]

約数ペア:

[(1, 28449421), (7, 4064203), (11, 2586311), (13, 2188417), (77, 369473), (91, 312631), (97, 293293), (143, 198947), (293, 97097), (679, 41899), (1001, 28421), (1067, 26663), (1261, 22561), (2051, 13871), (3223, 8827), (3809, 7469)]