21508726564

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4015819}}^1$

素因数の和:4015939

約数の個数: 24

約数和(自身を含む): 40929237440

約数和(自身を除く): 19420510876

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 4015819, 8031638, 16063276, 52205647, 104411294, 208822588, 413629357, 827258714, 1654517428, 5377181641, 10754363282, 21508726564]

約数ペア:

[(1, 21508726564), (2, 10754363282), (4, 5377181641), (13, 1654517428), (26, 827258714), (52, 413629357), (103, 208822588), (206, 104411294), (412, 52205647), (1339, 16063276), (2678, 8031638), (5356, 4015819)]