21510291

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5387}}^1$

素因数の和:5423

約数の個数: 16

約数和(自身を含む): 31552128

約数和(自身を除く): 10041837

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5387, 16161, 59257, 177771, 651827, 1955481, 7170097, 21510291]

約数ペア:

[(1, 21510291), (3, 7170097), (11, 1955481), (33, 651827), (121, 177771), (363, 59257), (1331, 16161), (3993, 5387)]