21683380

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{11177}}^1$

素因数の和:11283

約数の個数: 24

約数和(自身を含む): 46008648

約数和(自身を除く): 24325268

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 11177, 22354, 44708, 55885, 111770, 223540, 1084169, 2168338, 4336676, 5420845, 10841690, 21683380]

約数ペア:

[(1, 21683380), (2, 10841690), (4, 5420845), (5, 4336676), (10, 2168338), (20, 1084169), (97, 223540), (194, 111770), (388, 55885), (485, 44708), (970, 22354), (1940, 11177)]