28516689

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{709}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 42642600

約数和(自身を除く): 14125911

約数列:

[1, 3, 9, 41, 109, 123, 327, 369, 709, 981, 2127, 4469, 6381, 13407, 29069, 40221, 77281, 87207, 231843, 261621, 695529, 3168521, 9505563, 28516689]

約数ペア:

[(1, 28516689), (3, 9505563), (9, 3168521), (41, 695529), (109, 261621), (123, 231843), (327, 87207), (369, 77281), (709, 40221), (981, 29069), (2127, 13407), (4469, 6381)]