20854484

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17321}}^1$

素因数の和:17375

約数の個数: 24

約数和(自身を含む): 42681408

約数和(自身を除く): 21826924

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17321, 34642, 69284, 121247, 242494, 484988, 744803, 1489606, 2979212, 5213621, 10427242, 20854484]

約数ペア:

[(1, 20854484), (2, 10427242), (4, 5213621), (7, 2979212), (14, 1489606), (28, 744803), (43, 484988), (86, 242494), (172, 121247), (301, 69284), (602, 34642), (1204, 17321)]