21209122

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{87641}}^1$

素因数の和:87665

約数の個数: 12

約数和(自身を含む): 34969158

約数和(自身を除く): 13760036

約数列:

[1, 2, 11, 22, 121, 242, 87641, 175282, 964051, 1928102, 10604561, 21209122]

約数ペア:

[(1, 21209122), (2, 10604561), (11, 1928102), (22, 964051), (121, 175282), (242, 87641)]