18281228

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{28387}}^1$

素因数の和:28421

約数の個数: 24

約数和(自身を含む): 38153472

約数和(自身を除く): 19872244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 28387, 56774, 113548, 198709, 397418, 652901, 794836, 1305802, 2611604, 4570307, 9140614, 18281228]

約数ペア:

[(1, 18281228), (2, 9140614), (4, 4570307), (7, 2611604), (14, 1305802), (23, 794836), (28, 652901), (46, 397418), (92, 198709), (161, 113548), (322, 56774), (644, 28387)]