21241060

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10949}}^1$

素因数の和:11055

約数の個数: 24

約数和(自身を含む): 45070200

約数和(自身を除く): 23829140

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10949, 21898, 43796, 54745, 109490, 218980, 1062053, 2124106, 4248212, 5310265, 10620530, 21241060]

約数ペア:

[(1, 21241060), (2, 10620530), (4, 5310265), (5, 4248212), (10, 2124106), (20, 1062053), (97, 218980), (194, 109490), (388, 54745), (485, 43796), (970, 21898), (1940, 10949)]