81909247

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 104723840

約数和(自身を除く): 22814593

約数列:

[1, 7, 17, 19, 119, 133, 289, 323, 2023, 2131, 2261, 5491, 14917, 36227, 38437, 40489, 253589, 283423, 615859, 688313, 4311013, 4818191, 11701321, 81909247]

約数ペア:

[(1, 81909247), (7, 11701321), (17, 4818191), (19, 4311013), (119, 688313), (133, 615859), (289, 283423), (323, 253589), (2023, 40489), (2131, 38437), (2261, 36227), (5491, 14917)]