28107723

素因数分解:

$3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1787}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 44027712

約数和(自身を除く): 15919989

約数列:

[1, 3, 7, 21, 49, 107, 147, 321, 749, 1787, 2247, 5243, 5361, 12509, 15729, 37527, 87563, 191209, 262689, 573627, 1338463, 4015389, 9369241, 28107723]

約数ペア:

[(1, 28107723), (3, 9369241), (7, 4015389), (21, 1338463), (49, 573627), (107, 262689), (147, 191209), (321, 87563), (749, 37527), (1787, 15729), (2247, 12509), (5243, 5361)]