20920976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68819}}^1$

素因数の和:68846

約数の個数: 20

約数和(自身を含む): 42668400

約数和(自身を除く): 21747424

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68819, 137638, 275276, 550552, 1101104, 1307561, 2615122, 5230244, 10460488, 20920976]

約数ペア:

[(1, 20920976), (2, 10460488), (4, 5230244), (8, 2615122), (16, 1307561), (19, 1101104), (38, 550552), (76, 275276), (152, 137638), (304, 68819)]