319924

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{661}}^1$

素因数の和:687

約数の個数: 18

約数和(自身を含む): 616322

約数和(自身を除く): 296398

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 661, 1322, 2644, 7271, 14542, 29084, 79981, 159962, 319924]

約数ペア:

[(1, 319924), (2, 159962), (4, 79981), (11, 29084), (22, 14542), (44, 7271), (121, 2644), (242, 1322), (484, 661)]