20641648

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{27449}}^1$

素因数の和:27504

約数の個数: 20

約数和(自身を含む): 40845600

約数和(自身を除く): 20203952

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 27449, 54898, 109796, 219592, 439184, 1290103, 2580206, 5160412, 10320824, 20641648]

約数ペア:

[(1, 20641648), (2, 10320824), (4, 5160412), (8, 2580206), (16, 1290103), (47, 439184), (94, 219592), (188, 109796), (376, 54898), (752, 27449)]