20831718

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 42624000

約数和(自身を除く): 21792282

約数列:

[1, 2, 3, 6, 73, 146, 199, 219, 239, 398, 438, 478, 597, 717, 1194, 1434, 14527, 17447, 29054, 34894, 43581, 47561, 52341, 87162, 95122, 104682, 142683, 285366, 3471953, 6943906, 10415859, 20831718]

約数ペア:

[(1, 20831718), (2, 10415859), (3, 6943906), (6, 3471953), (73, 285366), (146, 142683), (199, 104682), (219, 95122), (239, 87162), (398, 52341), (438, 47561), (478, 43581), (597, 34894), (717, 29054), (1194, 17447), (1434, 14527)]