21664687

素因数分解:

${\mathrm{11}}^3\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:471

約数の個数: 16

約数和(自身を含む): 24472224

約数和(自身を除く): 2807537

約数列:

[1, 11, 41, 121, 397, 451, 1331, 4367, 4961, 16277, 48037, 54571, 179047, 528407, 1969517, 21664687]

約数ペア:

[(1, 21664687), (11, 1969517), (41, 528407), (121, 179047), (397, 54571), (451, 48037), (1331, 16277), (4367, 4961)]