20804054758

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1\times {\mathrm{406981}}^1$

素因数の和:407463

約数の個数: 16

約数和(自身を含む): 31793433840

約数和(自身を除く): 10989379082

約数列:

[1, 2, 61, 122, 419, 838, 25559, 51118, 406981, 813962, 24825841, 49651682, 170525039, 341050078, 10402027379, 20804054758]

約数ペア:

[(1, 20804054758), (2, 10402027379), (61, 341050078), (122, 170525039), (419, 49651682), (838, 24825841), (25559, 813962), (51118, 406981)]