20158436

素因数分解:

$2^2\times {\mathrm{509}}^1\times {\mathrm{9901}}^1$

素因数の和:10414

約数の個数: 12

約数和(自身を含む): 35350140

約数和(自身を除く): 15191704

約数列:

[1, 2, 4, 509, 1018, 2036, 9901, 19802, 39604, 5039609, 10079218, 20158436]

約数ペア:

[(1, 20158436), (2, 10079218), (4, 5039609), (509, 39604), (1018, 19802), (2036, 9901)]