20521850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{14153}}^1$

素因数の和:14194

約数の個数: 24

約数和(自身を含む): 39489660

約数和(自身を除く): 18967810

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 14153, 28306, 70765, 141530, 353825, 410437, 707650, 820874, 2052185, 4104370, 10260925, 20521850]

約数ペア:

[(1, 20521850), (2, 10260925), (5, 4104370), (10, 2052185), (25, 820874), (29, 707650), (50, 410437), (58, 353825), (145, 141530), (290, 70765), (725, 28306), (1450, 14153)]