20013973

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5189}}^1$

素因数の和:5244

約数の個数: 16

約数和(自身を含む): 24912000

約数和(自身を除く): 4898027

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5189, 36323, 98591, 150481, 690137, 1053367, 2859139, 20013973]

約数ペア:

[(1, 20013973), (7, 2859139), (19, 1053367), (29, 690137), (133, 150481), (203, 98591), (551, 36323), (3857, 5189)]