20683684

素因数分解:

$2^2\times 7^2\times {\mathrm{105529}}^1$

素因数の和:105547

約数の個数: 18

約数和(自身を含む): 42106470

約数和(自身を除く): 21422786

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 105529, 211058, 422116, 738703, 1477406, 2954812, 5170921, 10341842, 20683684]

約数ペア:

[(1, 20683684), (2, 10341842), (4, 5170921), (7, 2954812), (14, 1477406), (28, 738703), (49, 422116), (98, 211058), (196, 105529)]