21937959

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1361}}^1$

素因数の和:1572

約数の個数: 20

約数和(自身を含む): 32960400

約数和(自身を除く): 11022441

約数列:

[1, 3, 9, 27, 81, 199, 597, 1361, 1791, 4083, 5373, 12249, 16119, 36747, 110241, 270839, 812517, 2437551, 7312653, 21937959]

約数ペア:

[(1, 21937959), (3, 7312653), (9, 2437551), (27, 812517), (81, 270839), (199, 110241), (597, 36747), (1361, 16119), (1791, 12249), (4083, 5373)]