319661721

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{9649}}^1$

素因数の和:10070

約数の個数: 20

約数和(自身を含む): 478736500

約数和(自身を除く): 159074779

約数列:

[1, 3, 9, 27, 81, 409, 1227, 3681, 9649, 11043, 28947, 33129, 86841, 260523, 781569, 3946441, 11839323, 35517969, 106553907, 319661721]

約数ペア:

[(1, 319661721), (3, 106553907), (9, 35517969), (27, 11839323), (81, 3946441), (409, 781569), (1227, 260523), (3681, 86841), (9649, 33129), (11043, 28947)]