21161168

素因数分解:

$2^4\times 7^1\times {\mathrm{188939}}^1$

素因数の和:188954

約数の個数: 20

約数和(自身を含む): 46857120

約数和(自身を除く): 25695952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188939, 377878, 755756, 1322573, 1511512, 2645146, 3023024, 5290292, 10580584, 21161168]

約数ペア:

[(1, 21161168), (2, 10580584), (4, 5290292), (7, 3023024), (8, 2645146), (14, 1511512), (16, 1322573), (28, 755756), (56, 377878), (112, 188939)]