20003347

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 25479456

約数和(自身を除く): 5476109

約数列:

[1, 7, 13, 37, 91, 169, 259, 457, 481, 1183, 3199, 3367, 5941, 6253, 16909, 41587, 43771, 77233, 118363, 219817, 540631, 1538719, 2857621, 20003347]

約数ペア:

[(1, 20003347), (7, 2857621), (13, 1538719), (37, 540631), (91, 219817), (169, 118363), (259, 77233), (457, 43771), (481, 41587), (1183, 16909), (3199, 6253), (3367, 5941)]