20844368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68567}}^1$

素因数の和:68594

約数の個数: 20

約数和(自身を含む): 42512160

約数和(自身を除く): 21667792

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68567, 137134, 274268, 548536, 1097072, 1302773, 2605546, 5211092, 10422184, 20844368]

約数ペア:

[(1, 20844368), (2, 10422184), (4, 5211092), (8, 2605546), (16, 1302773), (19, 1097072), (38, 548536), (76, 274268), (152, 137134), (304, 68567)]