27980991

素因数分解:

$3^3\times {\mathrm{37}}^2\times {\mathrm{757}}^1$

素因数の和:840

約数の個数: 24

約数和(自身を含む): 42660240

約数和(自身を除く): 14679249

約数列:

[1, 3, 9, 27, 37, 111, 333, 757, 999, 1369, 2271, 4107, 6813, 12321, 20439, 28009, 36963, 84027, 252081, 756243, 1036333, 3108999, 9326997, 27980991]

約数ペア:

[(1, 27980991), (3, 9326997), (9, 3108999), (27, 1036333), (37, 756243), (111, 252081), (333, 84027), (757, 36963), (999, 28009), (1369, 20439), (2271, 12321), (4107, 6813)]