20791756

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1307}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 37686096

約数和(自身を除く): 16894340

約数列:

[1, 2, 4, 41, 82, 97, 164, 194, 388, 1307, 2614, 3977, 5228, 7954, 15908, 53587, 107174, 126779, 214348, 253558, 507116, 5197939, 10395878, 20791756]

約数ペア:

[(1, 20791756), (2, 10395878), (4, 5197939), (41, 507116), (82, 253558), (97, 214348), (164, 126779), (194, 107174), (388, 53587), (1307, 15908), (2614, 7954), (3977, 5228)]