20382817

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5209}}^1$

素因数の和:5272

約数の個数: 16

約数和(自身を含む): 25674880

約数和(自身を除く): 5292063

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5209, 36463, 67717, 223987, 474019, 1567909, 2911831, 20382817]

約数ペア:

[(1, 20382817), (7, 2911831), (13, 1567909), (43, 474019), (91, 223987), (301, 67717), (559, 36463), (3913, 5209)]