19555587

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1901}}^1$

素因数の和:2040

約数の個数: 20

約数和(自身を含む): 29458176

約数和(自身を除く): 9902589

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1901, 3429, 5703, 10287, 17109, 51327, 153981, 241427, 724281, 2172843, 6518529, 19555587]

約数ペア:

[(1, 19555587), (3, 6518529), (9, 2172843), (27, 724281), (81, 241427), (127, 153981), (381, 51327), (1143, 17109), (1901, 10287), (3429, 5703)]