21000337497

素因数分解:

$3^2\times {\mathrm{449}}^1\times {\mathrm{5196817}}^1$

素因数の和:5197272

約数の個数: 12

約数和(自身を含む): 30401385300

約数和(自身を除く): 9401047803

約数列:

[1, 3, 9, 449, 1347, 4041, 5196817, 15590451, 46771353, 2333370833, 7000112499, 21000337497]

約数ペア:

[(1, 21000337497), (3, 7000112499), (9, 2333370833), (449, 46771353), (1347, 15590451), (4041, 5196817)]