21909924

素因数分解:

$2^2\times 3^2\times {\mathrm{608609}}^1$

素因数の和:608619

約数の個数: 18

約数和(自身を含む): 55383510

約数和(自身を除く): 33473586

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608609, 1217218, 1825827, 2434436, 3651654, 5477481, 7303308, 10954962, 21909924]

約数ペア:

[(1, 21909924), (2, 10954962), (3, 7303308), (4, 5477481), (6, 3651654), (9, 2434436), (12, 1825827), (18, 1217218), (36, 608609)]