21000736528

素因数分解:

$2^4\times {\mathrm{1583}}^1\times {\mathrm{829151}}^1$

素因数の和:830742

約数の個数: 20

約数和(自身を含む): 40714679808

約数和(自身を除く): 19713943280

約数列:

[1, 2, 4, 8, 16, 1583, 3166, 6332, 12664, 25328, 829151, 1658302, 3316604, 6633208, 13266416, 1312546033, 2625092066, 5250184132, 10500368264, 21000736528]

約数ペア:

[(1, 21000736528), (2, 10500368264), (4, 5250184132), (8, 2625092066), (16, 1312546033), (1583, 13266416), (3166, 6633208), (6332, 3316604), (12664, 1658302), (25328, 829151)]