20478556

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31799}}^1$

素因数の和:31833

約数の個数: 24

約数和(自身を含む): 42739200

約数和(自身を除く): 22260644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31799, 63598, 127196, 222593, 445186, 731377, 890372, 1462754, 2925508, 5119639, 10239278, 20478556]

約数ペア:

[(1, 20478556), (2, 10239278), (4, 5119639), (7, 2925508), (14, 1462754), (23, 890372), (28, 731377), (46, 445186), (92, 222593), (161, 127196), (322, 63598), (644, 31799)]