217339556

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{408533}}^1$

素因数の和:408563

約数の個数: 24

約数和(自身を含む): 457558080

約数和(自身を除く): 240218524

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 408533, 817066, 1634132, 2859731, 5719462, 7762127, 11438924, 15524254, 31048508, 54334889, 108669778, 217339556]

約数ペア:

[(1, 217339556), (2, 108669778), (4, 54334889), (7, 31048508), (14, 15524254), (19, 11438924), (28, 7762127), (38, 5719462), (76, 2859731), (133, 1634132), (266, 817066), (532, 408533)]