19825574

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{457}}^1$

素因数の和:767

約数の個数: 16

約数和(自身を含む): 30228000

約数和(自身を除く): 10402426

約数列:

[1, 2, 109, 199, 218, 398, 457, 914, 21691, 43382, 49813, 90943, 99626, 181886, 9912787, 19825574]

約数ペア:

[(1, 19825574), (2, 9912787), (109, 181886), (199, 99626), (218, 90943), (398, 49813), (457, 43382), (914, 21691)]