21988568

素因数分解:

$2^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1279}}^1$

素因数の和:1599

約数の個数: 32

約数和(自身を含む): 47308800

約数和(自身を除く): 25320232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 307, 614, 1228, 1279, 2149, 2456, 2558, 4298, 5116, 8596, 8953, 10232, 17192, 17906, 35812, 71624, 392653, 785306, 1570612, 2748571, 3141224, 5497142, 10994284, 21988568]

約数ペア:

[(1, 21988568), (2, 10994284), (4, 5497142), (7, 3141224), (8, 2748571), (14, 1570612), (28, 785306), (56, 392653), (307, 71624), (614, 35812), (1228, 17906), (1279, 17192), (2149, 10232), (2456, 8953), (2558, 8596), (4298, 5116)]