20791814

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{2129}}^1$

素因数の和:2407

約数の個数: 16

約数和(自身を含む): 32972400

約数和(自身を除く): 12180586

約数列:

[1, 2, 19, 38, 257, 514, 2129, 4258, 4883, 9766, 40451, 80902, 547153, 1094306, 10395907, 20791814]

約数ペア:

[(1, 20791814), (2, 10395907), (19, 1094306), (38, 547153), (257, 80902), (514, 40451), (2129, 9766), (4258, 4883)]