20738497

素因数分解:

${\mathrm{13}}^2\times {\mathrm{41}}^2\times {\mathrm{73}}^1$

素因数の和:181

約数の個数: 18

約数和(自身を含む): 23332866

約数和(自身を除く): 2594369

約数列:

[1, 13, 41, 73, 169, 533, 949, 1681, 2993, 6929, 12337, 21853, 38909, 122713, 284089, 505817, 1595269, 20738497]

約数ペア:

[(1, 20738497), (13, 1595269), (41, 505817), (73, 284089), (169, 122713), (533, 38909), (949, 21853), (1681, 12337), (2993, 6929)]