28748277

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{1381}}^1$

素因数の和:1650

約数の個数: 20

約数和(自身を含む): 43143276

約数和(自身を除く): 14394999

約数列:

[1, 3, 9, 27, 81, 257, 771, 1381, 2313, 4143, 6939, 12429, 20817, 37287, 111861, 354917, 1064751, 3194253, 9582759, 28748277]

約数ペア:

[(1, 28748277), (3, 9582759), (9, 3194253), (27, 1064751), (81, 354917), (257, 111861), (771, 37287), (1381, 20817), (2313, 12429), (4143, 6939)]