20209724

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{71161}}^1$

素因数の和:71236

約数の個数: 12

約数和(自身を含む): 35865648

約数和(自身を除く): 15655924

約数列:

[1, 2, 4, 71, 142, 284, 71161, 142322, 284644, 5052431, 10104862, 20209724]

約数ペア:

[(1, 20209724), (2, 10104862), (4, 5052431), (71, 284644), (142, 142322), (284, 71161)]