21240436

素因数分解:

$2^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{2251}}^1$

素因数の和:2599

約数の個数: 24

約数和(自身を含む): 42625856

約数和(自身を除く): 21385420

約数列:

[1, 2, 4, 7, 14, 28, 337, 674, 1348, 2251, 2359, 4502, 4718, 9004, 9436, 15757, 31514, 63028, 758587, 1517174, 3034348, 5310109, 10620218, 21240436]

約数ペア:

[(1, 21240436), (2, 10620218), (4, 5310109), (7, 3034348), (14, 1517174), (28, 758587), (337, 63028), (674, 31514), (1348, 15757), (2251, 9436), (2359, 9004), (4502, 4718)]