20196999

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{6991}}^1$

素因数の和:7107

約数の個数: 16

約数和(自身を含む): 30205440

約数和(自身を除く): 10008441

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 6991, 20973, 62919, 188757, 748037, 2244111, 6732333, 20196999]

約数ペア:

[(1, 20196999), (3, 6732333), (9, 2244111), (27, 748037), (107, 188757), (321, 62919), (963, 20973), (2889, 6991)]