18820516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2531}}^1$

素因数の和:2572

約数の個数: 36

約数和(自身を含む): 38921904

約数和(自身を除く): 20101388

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2531, 3718, 5062, 7436, 10124, 27841, 32903, 55682, 65806, 111364, 131612, 361933, 427739, 723866, 855478, 1447732, 1710956, 4705129, 9410258, 18820516]

約数ペア:

[(1, 18820516), (2, 9410258), (4, 4705129), (11, 1710956), (13, 1447732), (22, 855478), (26, 723866), (44, 427739), (52, 361933), (143, 131612), (169, 111364), (286, 65806), (338, 55682), (572, 32903), (676, 27841), (1859, 10124), (2531, 7436), (3718, 5062)]