81138463

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 97822032

約数和(自身を除く): 16683569

約数列:

[1, 7, 43, 49, 97, 301, 397, 679, 2107, 2779, 4171, 4753, 17071, 19453, 29197, 38509, 119497, 204379, 269563, 836479, 1655887, 1886941, 11591209, 81138463]

約数ペア:

[(1, 81138463), (7, 11591209), (43, 1886941), (49, 1655887), (97, 836479), (301, 269563), (397, 204379), (679, 119497), (2107, 38509), (2779, 29197), (4171, 19453), (4753, 17071)]