21009050

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14489}}^1$

素因数の和:14530

約数の個数: 24

約数和(自身を含む): 40427100

約数和(自身を除く): 19418050

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14489, 28978, 72445, 144890, 362225, 420181, 724450, 840362, 2100905, 4201810, 10504525, 21009050]

約数ペア:

[(1, 21009050), (2, 10504525), (5, 4201810), (10, 2100905), (25, 840362), (29, 724450), (50, 420181), (58, 362225), (145, 144890), (290, 72445), (725, 28978), (1450, 14489)]