31728866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^2\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 24

約数和(自身を含む): 52192980

約数和(自身を除く): 20464114

約数列:

[1, 2, 13, 26, 73, 146, 229, 458, 949, 1898, 2977, 5329, 5954, 10658, 16717, 33434, 69277, 138554, 217321, 434642, 1220341, 2440682, 15864433, 31728866]

約数ペア:

[(1, 31728866), (2, 15864433), (13, 2440682), (26, 1220341), (73, 434642), (146, 217321), (229, 138554), (458, 69277), (949, 33434), (1898, 16717), (2977, 10658), (5329, 5954)]