20545357

素因数分解:

$7^4\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 20

約数和(自身を含む): 24648800

約数和(自身を除く): 4103443

約数列:

[1, 7, 43, 49, 199, 301, 343, 1393, 2107, 2401, 8557, 9751, 14749, 59899, 68257, 103243, 419293, 477799, 2935051, 20545357]

約数ペア:

[(1, 20545357), (7, 2935051), (43, 477799), (49, 419293), (199, 103243), (301, 68257), (343, 59899), (1393, 14749), (2107, 9751), (2401, 8557)]