2708721

素因数分解:

$3^5\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 4140864

約数和(自身を除く): 1432143

約数列:

[1, 3, 9, 27, 71, 81, 157, 213, 243, 471, 639, 1413, 1917, 4239, 5751, 11147, 12717, 17253, 33441, 38151, 100323, 300969, 902907, 2708721]

約数ペア:

[(1, 2708721), (3, 902907), (9, 300969), (27, 100323), (71, 38151), (81, 33441), (157, 17253), (213, 12717), (243, 11147), (471, 5751), (639, 4239), (1413, 1917)]