163940569

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 188332872

約数和(自身を除く): 24392303

約数列:

[1, 13, 19, 181, 193, 247, 361, 2353, 2509, 3439, 3667, 4693, 34933, 44707, 47671, 65341, 69673, 454129, 663727, 849433, 905749, 8628451, 12610813, 163940569]

約数ペア:

[(1, 163940569), (13, 12610813), (19, 8628451), (181, 905749), (193, 849433), (247, 663727), (361, 454129), (2353, 69673), (2509, 65341), (3439, 47671), (3667, 44707), (4693, 34933)]