20218761

素因数分解:

$3^3\times {\mathrm{37}}^2\times {\mathrm{547}}^1$

素因数の和:630

約数の個数: 24

約数和(自身を含む): 30841440

約数和(自身を除く): 10622679

約数列:

[1, 3, 9, 27, 37, 111, 333, 547, 999, 1369, 1641, 4107, 4923, 12321, 14769, 20239, 36963, 60717, 182151, 546453, 748843, 2246529, 6739587, 20218761]

約数ペア:

[(1, 20218761), (3, 6739587), (9, 2246529), (27, 748843), (37, 546453), (111, 182151), (333, 60717), (547, 36963), (999, 20239), (1369, 14769), (1641, 12321), (4107, 4923)]