20158439

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 23642112

約数和(自身を除く): 3483673

約数列:

[1, 7, 73, 103, 383, 511, 721, 2681, 7519, 27959, 39449, 52633, 195713, 276143, 2879777, 20158439]

約数ペア:

[(1, 20158439), (7, 2879777), (73, 276143), (103, 195713), (383, 52633), (511, 39449), (721, 27959), (2681, 7519)]