289863

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:163

約数の個数: 24

約数和(自身を含む): 494208

約数和(自身を除く): 204345

約数列:

[1, 3, 7, 9, 21, 43, 63, 107, 129, 301, 321, 387, 749, 903, 963, 2247, 2709, 4601, 6741, 13803, 32207, 41409, 96621, 289863]

約数ペア:

[(1, 289863), (3, 96621), (7, 41409), (9, 32207), (21, 13803), (43, 6741), (63, 4601), (107, 2709), (129, 2247), (301, 963), (321, 903), (387, 749)]