20178862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8117}}^1$

素因数の和:8243

約数の個数: 16

約数和(自身を含む): 33316272

約数和(自身を除く): 13137410

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8117, 16234, 89287, 178574, 917221, 1834442, 10089431, 20178862]

約数ペア:

[(1, 20178862), (2, 10089431), (11, 1834442), (22, 917221), (113, 178574), (226, 89287), (1243, 16234), (2486, 8117)]