12707289

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{503}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 21071232

約数和(自身を除く): 8363943

約数列:

[1, 3, 7, 9, 21, 63, 401, 503, 1203, 1509, 2807, 3521, 3609, 4527, 8421, 10563, 25263, 31689, 201703, 605109, 1411921, 1815327, 4235763, 12707289]

約数ペア:

[(1, 12707289), (3, 4235763), (7, 1815327), (9, 1411921), (21, 605109), (63, 201703), (401, 31689), (503, 25263), (1203, 10563), (1509, 8421), (2807, 4527), (3521, 3609)]