19805964

素因数分解:

$2^2\times 3^1\times {\mathrm{647}}^1\times {\mathrm{2551}}^1$

素因数の和:3205

約数の個数: 24

約数和(自身を含む): 46303488

約数和(自身を除く): 26497524

約数列:

[1, 2, 3, 4, 6, 12, 647, 1294, 1941, 2551, 2588, 3882, 5102, 7653, 7764, 10204, 15306, 30612, 1650497, 3300994, 4951491, 6601988, 9902982, 19805964]

約数ペア:

[(1, 19805964), (2, 9902982), (3, 6601988), (4, 4951491), (6, 3300994), (12, 1650497), (647, 30612), (1294, 15306), (1941, 10204), (2551, 7764), (2588, 7653), (3882, 5102)]