20790644

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6571}}^1$

素因数の和:6695

約数の個数: 24

約数和(自身を含む): 41955648

約数和(自身を除く): 21165004

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6571, 13142, 26284, 45997, 91994, 183988, 742523, 1485046, 2970092, 5197661, 10395322, 20790644]

約数ペア:

[(1, 20790644), (2, 10395322), (4, 5197661), (7, 2970092), (14, 1485046), (28, 742523), (113, 183988), (226, 91994), (452, 45997), (791, 26284), (1582, 13142), (3164, 6571)]