19877264

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112939}}^1$

素因数の和:112958

約数の個数: 20

約数和(自身を含む): 42013680

約数和(自身を除く): 22136416

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112939, 225878, 451756, 903512, 1242329, 1807024, 2484658, 4969316, 9938632, 19877264]

約数ペア:

[(1, 19877264), (2, 9938632), (4, 4969316), (8, 2484658), (11, 1807024), (16, 1242329), (22, 903512), (44, 451756), (88, 225878), (176, 112939)]