18797938

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:921

約数の個数: 16

約数和(自身を含む): 28771200

約数和(自身を除く): 9973262

約数列:

[1, 2, 73, 146, 199, 398, 647, 1294, 14527, 29054, 47231, 94462, 128753, 257506, 9398969, 18797938]

約数ペア:

[(1, 18797938), (2, 9398969), (73, 257506), (146, 128753), (199, 94462), (398, 47231), (647, 29054), (1294, 14527)]