20666044

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1087}}^1$

素因数の和:1202

約数の個数: 36

約数和(自身を含む): 42542976

約数和(自身を除く): 21876932

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 1087, 1358, 2174, 2716, 4348, 4753, 7609, 9506, 15218, 19012, 30436, 53263, 105439, 106526, 210878, 213052, 421756, 738073, 1476146, 2952292, 5166511, 10333022, 20666044]

約数ペア:

[(1, 20666044), (2, 10333022), (4, 5166511), (7, 2952292), (14, 1476146), (28, 738073), (49, 421756), (97, 213052), (98, 210878), (194, 106526), (196, 105439), (388, 53263), (679, 30436), (1087, 19012), (1358, 15218), (2174, 9506), (2716, 7609), (4348, 4753)]