21005488511

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{461}}^1\times {\mathrm{15761}}^1$

素因数の和:16295

約数の個数: 24

約数和(自身を含む): 24904590480

約数和(自身を除く): 3899101969

約数列:

[1, 7, 49, 59, 413, 461, 2891, 3227, 15761, 22589, 27199, 110327, 190393, 772289, 929899, 1332751, 6509293, 7265821, 45565051, 50860747, 356025229, 428683439, 3000784073, 21005488511]

約数ペア:

[(1, 21005488511), (7, 3000784073), (49, 428683439), (59, 356025229), (413, 50860747), (461, 45565051), (2891, 7265821), (3227, 6509293), (15761, 1332751), (22589, 929899), (27199, 772289), (110327, 190393)]