21161392

素因数分解:

$2^4\times 7^1\times {\mathrm{188941}}^1$

素因数の和:188956

約数の個数: 20

約数和(自身を含む): 46857616

約数和(自身を除く): 25696224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188941, 377882, 755764, 1322587, 1511528, 2645174, 3023056, 5290348, 10580696, 21161392]

約数ペア:

[(1, 21161392), (2, 10580696), (4, 5290348), (7, 3023056), (8, 2645174), (14, 1511528), (16, 1322587), (28, 755764), (56, 377882), (112, 188941)]