21541828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69941}}^1$

素因数の和:69963

約数の個数: 24

約数和(自身を含む): 47001024

約数和(自身を除く): 25459196

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69941, 139882, 279764, 489587, 769351, 979174, 1538702, 1958348, 3077404, 5385457, 10770914, 21541828]

約数ペア:

[(1, 21541828), (2, 10770914), (4, 5385457), (7, 3077404), (11, 1958348), (14, 1538702), (22, 979174), (28, 769351), (44, 489587), (77, 279764), (154, 139882), (308, 69941)]