20870836

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25703}}^1$

素因数の和:25743

約数の個数: 24

約数和(自身を含む): 43182720

約数和(自身を除く): 22311884

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25703, 51406, 102812, 179921, 359842, 719684, 745387, 1490774, 2981548, 5217709, 10435418, 20870836]

約数ペア:

[(1, 20870836), (2, 10435418), (4, 5217709), (7, 2981548), (14, 1490774), (28, 745387), (29, 719684), (58, 359842), (116, 179921), (203, 102812), (406, 51406), (812, 25703)]