21130186

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137209}}^1$

素因数の和:137229

約数の個数: 16

約数和(自身を含む): 39516480

約数和(自身を除く): 18386294

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137209, 274418, 960463, 1509299, 1920926, 3018598, 10565093, 21130186]

約数ペア:

[(1, 21130186), (2, 10565093), (7, 3018598), (11, 1920926), (14, 1509299), (22, 960463), (77, 274418), (154, 137209)]