19993712

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4447}}^1$

素因数の和:4736

約数の個数: 20

約数和(自身を含む): 38884416

約数和(自身を除く): 18890704

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4447, 4496, 8894, 17788, 35576, 71152, 1249607, 2499214, 4998428, 9996856, 19993712]

約数ペア:

[(1, 19993712), (2, 9996856), (4, 4998428), (8, 2499214), (16, 1249607), (281, 71152), (562, 35576), (1124, 17788), (2248, 8894), (4447, 4496)]