20017697

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2551}}^1$

素因数の和:2636

約数の個数: 16

約数和(自身を含む): 24499200

約数和(自身を除く): 4481503

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2551, 7847, 17857, 48469, 150509, 339283, 1053563, 2859671, 20017697]

約数ペア:

[(1, 20017697), (7, 2859671), (19, 1053563), (59, 339283), (133, 150509), (413, 48469), (1121, 17857), (2551, 7847)]