209940994

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{313}}^1\times {\mathrm{929}}^1$

素因数の和:1282

約数の個数: 24

約数和(自身を含む): 333778860

約数和(自身を除く): 123837866

約数列:

[1, 2, 19, 38, 313, 361, 626, 722, 929, 1858, 5947, 11894, 17651, 35302, 112993, 225986, 290777, 335369, 581554, 670738, 5524763, 11049526, 104970497, 209940994]

約数ペア:

[(1, 209940994), (2, 104970497), (19, 11049526), (38, 5524763), (313, 670738), (361, 581554), (626, 335369), (722, 290777), (929, 225986), (1858, 112993), (5947, 35302), (11894, 17651)]