21239607

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 28864512

約数和(自身を除く): 7624905

約数列:

[1, 3, 107, 127, 321, 381, 521, 1563, 13589, 40767, 55747, 66167, 167241, 198501, 7079869, 21239607]

約数ペア:

[(1, 21239607), (3, 7079869), (107, 198501), (127, 167241), (321, 66167), (381, 55747), (521, 40767), (1563, 13589)]