209217854

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 337440000

約数和(自身を除く): 128222146

約数列:

[1, 2, 19, 38, 73, 146, 199, 379, 398, 758, 1387, 2774, 3781, 7201, 7562, 14402, 14527, 27667, 29054, 55334, 75421, 150842, 276013, 525673, 552026, 1051346, 1432999, 2865998, 5505733, 11011466, 104608927, 209217854]

約数ペア:

[(1, 209217854), (2, 104608927), (19, 11011466), (38, 5505733), (73, 2865998), (146, 1432999), (199, 1051346), (379, 552026), (398, 525673), (758, 276013), (1387, 150842), (2774, 75421), (3781, 55334), (7201, 29054), (7562, 27667), (14402, 14527)]