21037372

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 37471280

約数和(自身を除く): 16433908

約数列:

[1, 2, 4, 139, 157, 241, 278, 314, 482, 556, 628, 964, 21823, 33499, 37837, 43646, 66998, 75674, 87292, 133996, 151348, 5259343, 10518686, 21037372]

約数ペア:

[(1, 21037372), (2, 10518686), (4, 5259343), (139, 151348), (157, 133996), (241, 87292), (278, 75674), (314, 66998), (482, 43646), (556, 37837), (628, 33499), (964, 21823)]