18994628

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 33868800

約数和(自身を除く): 14874172

約数列:

[1, 2, 4, 127, 139, 254, 269, 278, 508, 538, 556, 1076, 17653, 34163, 35306, 37391, 68326, 70612, 74782, 136652, 149564, 4748657, 9497314, 18994628]

約数ペア:

[(1, 18994628), (2, 9497314), (4, 4748657), (127, 149564), (139, 136652), (254, 74782), (269, 70612), (278, 68326), (508, 37391), (538, 35306), (556, 34163), (1076, 17653)]