19944841

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1697}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 24125184

約数和(自身を除く): 4180343

約数列:

[1, 7, 23, 73, 161, 511, 1679, 1697, 11753, 11879, 39031, 123881, 273217, 867167, 2849263, 19944841]

約数ペア:

[(1, 19944841), (7, 2849263), (23, 867167), (73, 273217), (161, 123881), (511, 39031), (1679, 11879), (1697, 11753)]