20781126

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{26849}}^1$

素因数の和:26900

約数の個数: 24

約数和(自身を含む): 46074600

約数和(自身を除く): 25293474

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 26849, 53698, 80547, 161094, 241641, 483282, 1154507, 2309014, 3463521, 6927042, 10390563, 20781126]

約数ペア:

[(1, 20781126), (2, 10390563), (3, 6927042), (6, 3463521), (9, 2309014), (18, 1154507), (43, 483282), (86, 241641), (129, 161094), (258, 80547), (387, 53698), (774, 26849)]