20820842

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{64661}}^1$

素因数の和:64693

約数の個数: 16

約数和(自身を含む): 37245312

約数和(自身を除く): 16424470

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 64661, 129322, 452627, 905254, 1487203, 2974406, 10410421, 20820842]

約数ペア:

[(1, 20820842), (2, 10410421), (7, 2974406), (14, 1487203), (23, 905254), (46, 452627), (161, 129322), (322, 64661)]