20595772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{839}}^1$

素因数の和:898

約数の個数: 36

約数和(自身を含む): 40325040

約数和(自身を除く): 19729268

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 361, 646, 722, 839, 1292, 1444, 1678, 3356, 6137, 12274, 14263, 15941, 24548, 28526, 31882, 57052, 63764, 270997, 302879, 541994, 605758, 1083988, 1211516, 5148943, 10297886, 20595772]

約数ペア:

[(1, 20595772), (2, 10297886), (4, 5148943), (17, 1211516), (19, 1083988), (34, 605758), (38, 541994), (68, 302879), (76, 270997), (323, 63764), (361, 57052), (646, 31882), (722, 28526), (839, 24548), (1292, 15941), (1444, 14263), (1678, 12274), (3356, 6137)]