21155768

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{4999}}^1$

素因数の和:5051

約数の個数: 24

約数和(自身を含む): 41475000

約数和(自身を除く): 20319232

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 529, 1058, 2116, 4232, 4999, 9998, 19996, 39992, 114977, 229954, 459908, 919816, 2644471, 5288942, 10577884, 21155768]

約数ペア:

[(1, 21155768), (2, 10577884), (4, 5288942), (8, 2644471), (23, 919816), (46, 459908), (92, 229954), (184, 114977), (529, 39992), (1058, 19996), (2116, 9998), (4232, 4999)]