21464828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69691}}^1$

素因数の和:69713

約数の個数: 24

約数和(自身を含む): 46833024

約数和(自身を除く): 25368196

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69691, 139382, 278764, 487837, 766601, 975674, 1533202, 1951348, 3066404, 5366207, 10732414, 21464828]

約数ペア:

[(1, 21464828), (2, 10732414), (4, 5366207), (7, 3066404), (11, 1951348), (14, 1533202), (22, 975674), (28, 766601), (44, 487837), (77, 278764), (154, 139382), (308, 69691)]