21689276

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33679}}^1$

素因数の和:33713

約数の個数: 24

約数和(自身を含む): 45265920

約数和(自身を除く): 23576644

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33679, 67358, 134716, 235753, 471506, 774617, 943012, 1549234, 3098468, 5422319, 10844638, 21689276]

約数ペア:

[(1, 21689276), (2, 10844638), (4, 5422319), (7, 3098468), (14, 1549234), (23, 943012), (28, 774617), (46, 471506), (92, 235753), (161, 134716), (322, 67358), (644, 33679)]