21321141

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 28975104

約数和(自身を除く): 7653963

約数列:

[1, 3, 107, 127, 321, 381, 523, 1569, 13589, 40767, 55961, 66421, 167883, 199263, 7107047, 21321141]

約数ペア:

[(1, 21321141), (3, 7107047), (107, 199263), (127, 167883), (321, 66421), (381, 55961), (523, 40767), (1569, 13589)]