2011457781

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{74923}}^1$

素因数の和:75105

約数の個数: 24

約数和(自身を含む): 3077877920

約数和(自身を除く): 1066420139

約数列:

[1, 3, 9, 19, 57, 157, 171, 471, 1413, 2983, 8949, 26847, 74923, 224769, 674307, 1423537, 4270611, 11762911, 12811833, 35288733, 105866199, 223495309, 670485927, 2011457781]

約数ペア:

[(1, 2011457781), (3, 670485927), (9, 223495309), (19, 105866199), (57, 35288733), (157, 12811833), (171, 11762911), (471, 4270611), (1413, 1423537), (2983, 674307), (8949, 224769), (26847, 74923)]