19855784

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{190921}}^1$

素因数の和:190940

約数の個数: 16

約数和(自身を含む): 40093620

約数和(自身を除く): 20237836

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 190921, 381842, 763684, 1527368, 2481973, 4963946, 9927892, 19855784]

約数ペア:

[(1, 19855784), (2, 9927892), (4, 4963946), (8, 2481973), (13, 1527368), (26, 763684), (52, 381842), (104, 190921)]