19799504

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:515

約数の個数: 40

約数和(自身を含む): 40390272

約数和(自身を除く): 20590768

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 173, 184, 311, 346, 368, 622, 692, 1244, 1384, 2488, 2768, 3979, 4976, 7153, 7958, 14306, 15916, 28612, 31832, 53803, 57224, 63664, 107606, 114448, 215212, 430424, 860848, 1237469, 2474938, 4949876, 9899752, 19799504]

約数ペア:

[(1, 19799504), (2, 9899752), (4, 4949876), (8, 2474938), (16, 1237469), (23, 860848), (46, 430424), (92, 215212), (173, 114448), (184, 107606), (311, 63664), (346, 57224), (368, 53803), (622, 31832), (692, 28612), (1244, 15916), (1384, 14306), (2488, 7958), (2768, 7153), (3979, 4976)]