18620329

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2803}}^1$

素因数の和:2896

約数の個数: 16

約数和(自身を含む): 23239552

約数和(自身を除く): 4619223

約数列:

[1, 7, 13, 73, 91, 511, 949, 2803, 6643, 19621, 36439, 204619, 255073, 1432333, 2660047, 18620329]

約数ペア:

[(1, 18620329), (7, 2660047), (13, 1432333), (73, 255073), (91, 204619), (511, 36439), (949, 19621), (2803, 6643)]