21434540

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4447}}^1$

素因数の和:4697

約数の個数: 24

約数和(自身を含む): 45209472

約数和(自身を除く): 23774932

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4447, 4820, 8894, 17788, 22235, 44470, 88940, 1071727, 2143454, 4286908, 5358635, 10717270, 21434540]

約数ペア:

[(1, 21434540), (2, 10717270), (4, 5358635), (5, 4286908), (10, 2143454), (20, 1071727), (241, 88940), (482, 44470), (964, 22235), (1205, 17788), (2410, 8894), (4447, 4820)]