199486417

素因数分解:

${\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 224103264

約数和(自身を除く): 24616847

約数列:

[1, 13, 43, 97, 169, 283, 559, 1261, 3679, 4171, 7267, 12169, 16393, 27451, 47827, 54223, 158197, 356863, 704899, 1180393, 2056561, 4639219, 15345109, 199486417]

約数ペア:

[(1, 199486417), (13, 15345109), (43, 4639219), (97, 2056561), (169, 1180393), (283, 704899), (559, 356863), (1261, 158197), (3679, 54223), (4171, 47827), (7267, 27451), (12169, 16393)]