20888906379

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{49807}}^1$

素因数の和:50071

約数の個数: 32

約数和(自身を含む): 30984560640

約数和(自身を除く): 10095654261

約数列:

[1, 3, 11, 33, 71, 179, 213, 537, 781, 1969, 2343, 5907, 12709, 38127, 49807, 139799, 149421, 419397, 547877, 1643631, 3536297, 8915453, 10608891, 26746359, 38899267, 98069983, 116697801, 294209949, 632997163, 1898991489, 6962968793, 20888906379]

約数ペア:

[(1, 20888906379), (3, 6962968793), (11, 1898991489), (33, 632997163), (71, 294209949), (179, 116697801), (213, 98069983), (537, 38899267), (781, 26746359), (1969, 10608891), (2343, 8915453), (5907, 3536297), (12709, 1643631), (38127, 547877), (49807, 419397), (139799, 149421)]