2019978981

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{2521}}^1\times {\mathrm{5237}}^1$

素因数の和:7781

約数の個数: 24

約数和(自身を含む): 3091195224

約数和(自身を除く): 1071216243

約数列:

[1, 3, 9, 17, 51, 153, 2521, 5237, 7563, 15711, 22689, 42857, 47133, 89029, 128571, 267087, 385713, 801261, 13202477, 39607431, 118822293, 224442109, 673326327, 2019978981]

約数ペア:

[(1, 2019978981), (3, 673326327), (9, 224442109), (17, 118822293), (51, 39607431), (153, 13202477), (2521, 801261), (5237, 385713), (7563, 267087), (15711, 128571), (22689, 89029), (42857, 47133)]