19271681

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 24554880

約数和(自身を除く): 5283199

約数列:

[1, 11, 13, 19, 41, 143, 173, 209, 247, 451, 533, 779, 1903, 2249, 2717, 3287, 5863, 7093, 8569, 10127, 24739, 36157, 42731, 78023, 92209, 111397, 134767, 470041, 1014299, 1482437, 1751971, 19271681]

約数ペア:

[(1, 19271681), (11, 1751971), (13, 1482437), (19, 1014299), (41, 470041), (143, 134767), (173, 111397), (209, 92209), (247, 78023), (451, 42731), (533, 36157), (779, 24739), (1903, 10127), (2249, 8569), (2717, 7093), (3287, 5863)]