28646379

素因数分解:

$3^4\times {\mathrm{251}}^1\times {\mathrm{1409}}^1$

素因数の和:1672

約数の個数: 20

約数和(自身を含む): 42993720

約数和(自身を除く): 14347341

約数列:

[1, 3, 9, 27, 81, 251, 753, 1409, 2259, 4227, 6777, 12681, 20331, 38043, 114129, 353659, 1060977, 3182931, 9548793, 28646379]

約数ペア:

[(1, 28646379), (3, 9548793), (9, 3182931), (27, 1060977), (81, 353659), (251, 114129), (753, 38043), (1409, 20331), (2259, 12681), (4227, 6777)]