19987112

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{22921}}^1$

素因数の和:23036

約数の個数: 16

約数和(自身を含む): 37821300

約数和(自身を除く): 17834188

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 22921, 45842, 91684, 183368, 2498389, 4996778, 9993556, 19987112]

約数ペア:

[(1, 19987112), (2, 9993556), (4, 4996778), (8, 2498389), (109, 183368), (218, 91684), (436, 45842), (872, 22921)]