20678613

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2917}}^1$

素因数の和:3076

約数の個数: 16

約数和(自身を含む): 29413440

約数和(自身を除く): 8734827

約数列:

[1, 3, 17, 51, 139, 417, 2363, 2917, 7089, 8751, 49589, 148767, 405463, 1216389, 6892871, 20678613]

約数ペア:

[(1, 20678613), (3, 6892871), (17, 1216389), (51, 405463), (139, 148767), (417, 49589), (2363, 8751), (2917, 7089)]