19865222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{40213}}^1$

素因数の和:40247

約数の個数: 16

約数和(自身を含む): 33779760

約数和(自身を除く): 13914538

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 40213, 80426, 522769, 764047, 1045538, 1528094, 9932611, 19865222]

約数ペア:

[(1, 19865222), (2, 9932611), (13, 1528094), (19, 1045538), (26, 764047), (38, 522769), (247, 80426), (494, 40213)]