21180366

素因数分解:

$2^1\times 3^6\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:292

約数の個数: 56

約数和(自身を含む): 48529200

約数和(自身を除く): 27348834

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 199, 219, 243, 398, 438, 486, 597, 657, 729, 1194, 1314, 1458, 1791, 1971, 3582, 3942, 5373, 5913, 10746, 11826, 14527, 16119, 17739, 29054, 32238, 35478, 43581, 48357, 53217, 87162, 96714, 106434, 130743, 145071, 261486, 290142, 392229, 784458, 1176687, 2353374, 3530061, 7060122, 10590183, 21180366]

約数ペア:

[(1, 21180366), (2, 10590183), (3, 7060122), (6, 3530061), (9, 2353374), (18, 1176687), (27, 784458), (54, 392229), (73, 290142), (81, 261486), (146, 145071), (162, 130743), (199, 106434), (219, 96714), (243, 87162), (398, 53217), (438, 48357), (486, 43581), (597, 35478), (657, 32238), (729, 29054), (1194, 17739), (1314, 16119), (1458, 14527), (1791, 11826), (1971, 10746), (3582, 5913), (3942, 5373)]