208513629

素因数分解:

$3^3\times {\mathrm{181}}^1\times {\mathrm{42667}}^1$

素因数の和:42857

約数の個数: 16

約数和(自身を含む): 310623040

約数和(自身を除く): 102109411

約数列:

[1, 3, 9, 27, 181, 543, 1629, 4887, 42667, 128001, 384003, 1152009, 7722727, 23168181, 69504543, 208513629]

約数ペア:

[(1, 208513629), (3, 69504543), (9, 23168181), (27, 7722727), (181, 1152009), (543, 384003), (1629, 128001), (4887, 42667)]