21494390

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24151}}^1$

素因数の和:24247

約数の個数: 16

約数和(自身を含む): 39126240

約数和(自身を除く): 17631850

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 24151, 48302, 120755, 241510, 2149439, 4298878, 10747195, 21494390]

約数ペア:

[(1, 21494390), (2, 10747195), (5, 4298878), (10, 2149439), (89, 241510), (178, 120755), (445, 48302), (890, 24151)]