21021644

素因数分解:

$2^2\times 7^1\times {\mathrm{587}}^1\times {\mathrm{1279}}^1$

素因数の和:1877

約数の個数: 24

約数和(自身を含む): 42147840

約数和(自身を除く): 21126196

約数列:

[1, 2, 4, 7, 14, 28, 587, 1174, 1279, 2348, 2558, 4109, 5116, 8218, 8953, 16436, 17906, 35812, 750773, 1501546, 3003092, 5255411, 10510822, 21021644]

約数ペア:

[(1, 21021644), (2, 10510822), (4, 5255411), (7, 3003092), (14, 1501546), (28, 750773), (587, 35812), (1174, 17906), (1279, 16436), (2348, 8953), (2558, 8218), (4109, 5116)]