201991491

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{3301}}^1$

素因数の和:3843

約数の個数: 24

約数和(自身を含む): 314905136

約数和(自身を除く): 112913645

約数列:

[1, 3, 9, 13, 39, 117, 523, 1569, 3301, 4707, 6799, 9903, 20397, 29709, 42913, 61191, 128739, 386217, 1726423, 5179269, 15537807, 22443499, 67330497, 201991491]

約数ペア:

[(1, 201991491), (3, 67330497), (9, 22443499), (13, 15537807), (39, 5179269), (117, 1726423), (523, 386217), (1569, 128739), (3301, 61191), (4707, 42913), (6799, 29709), (9903, 20397)]