19499860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42391}}^1$

素因数の和:42423

約数の個数: 24

約数和(自身を含む): 42731136

約数和(自身を除く): 23231276

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42391, 84782, 169564, 211955, 423910, 847820, 974993, 1949986, 3899972, 4874965, 9749930, 19499860]

約数ペア:

[(1, 19499860), (2, 9749930), (4, 4874965), (5, 3899972), (10, 1949986), (20, 974993), (23, 847820), (46, 423910), (92, 211955), (115, 169564), (230, 84782), (460, 42391)]