21491024

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16183}}^1$

素因数の和:16274

約数の個数: 20

約数和(自身を含む): 42143136

約数和(自身を除く): 20652112

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16183, 32366, 64732, 129464, 258928, 1343189, 2686378, 5372756, 10745512, 21491024]

約数ペア:

[(1, 21491024), (2, 10745512), (4, 5372756), (8, 2686378), (16, 1343189), (83, 258928), (166, 129464), (332, 64732), (664, 32366), (1328, 16183)]