21475748

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17837}}^1$

素因数の和:17891

約数の個数: 24

約数和(自身を含む): 43952832

約数和(自身を除く): 22477084

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17837, 35674, 71348, 124859, 249718, 499436, 766991, 1533982, 3067964, 5368937, 10737874, 21475748]

約数ペア:

[(1, 21475748), (2, 10737874), (4, 5368937), (7, 3067964), (14, 1533982), (28, 766991), (43, 499436), (86, 249718), (172, 124859), (301, 71348), (602, 35674), (1204, 17837)]