20966621

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 23378880

約数和(自身を除く): 2412259

約数列:

[1, 13, 41, 139, 283, 533, 1807, 3679, 5699, 11603, 39337, 74087, 150839, 511381, 1612817, 20966621]

約数ペア:

[(1, 20966621), (13, 1612817), (41, 511381), (139, 150839), (283, 74087), (533, 39337), (1807, 11603), (3679, 5699)]