18906866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4073}}^1$

素因数の和:4297

約数の個数: 16

約数和(自身を含む): 31092768

約数和(自身を除く): 12185902

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4073, 4642, 8146, 44803, 89606, 859403, 1718806, 9453433, 18906866]

約数ペア:

[(1, 18906866), (2, 9453433), (11, 1718806), (22, 859403), (211, 89606), (422, 44803), (2321, 8146), (4073, 4642)]