18722872

素因数分解:

$2^3\times 7^1\times {\mathrm{367}}^1\times {\mathrm{911}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 21551048

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 367, 734, 911, 1468, 1822, 2569, 2936, 3644, 5138, 6377, 7288, 10276, 12754, 20552, 25508, 51016, 334337, 668674, 1337348, 2340359, 2674696, 4680718, 9361436, 18722872]

約数ペア:

[(1, 18722872), (2, 9361436), (4, 4680718), (7, 2674696), (8, 2340359), (14, 1337348), (28, 668674), (56, 334337), (367, 51016), (734, 25508), (911, 20552), (1468, 12754), (1822, 10276), (2569, 7288), (2936, 6377), (3644, 5138)]