18757804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{8389}}^1$

素因数の和:8449

約数の個数: 24

約数和(自身を含む): 36177680

約数和(自身を除く): 17419876

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 8389, 16778, 33556, 109057, 218114, 360727, 436228, 721454, 1442908, 4689451, 9378902, 18757804]

約数ペア:

[(1, 18757804), (2, 9378902), (4, 4689451), (13, 1442908), (26, 721454), (43, 436228), (52, 360727), (86, 218114), (172, 109057), (559, 33556), (1118, 16778), (2236, 8389)]