81165364

素因数分解:

$2^2\times 7^2\times {\mathrm{414109}}^1$

素因数の和:414127

約数の個数: 18

約数和(自身を含む): 165229890

約数和(自身を除く): 84064526

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 414109, 828218, 1656436, 2898763, 5797526, 11595052, 20291341, 40582682, 81165364]

約数ペア:

[(1, 81165364), (2, 40582682), (4, 20291341), (7, 11595052), (14, 5797526), (28, 2898763), (49, 1656436), (98, 828218), (196, 414109)]