21459464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{206341}}^1$

素因数の和:206360

約数の個数: 16

約数和(自身を含む): 43331820

約数和(自身を除く): 21872356

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 206341, 412682, 825364, 1650728, 2682433, 5364866, 10729732, 21459464]

約数ペア:

[(1, 21459464), (2, 10729732), (4, 5364866), (8, 2682433), (13, 1650728), (26, 825364), (52, 412682), (104, 206341)]