21733353

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1709}}^1$

素因数の和:1878

約数の個数: 20

約数和(自身を含む): 32691780

約数和(自身を除く): 10958427

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1709, 4239, 5127, 12717, 15381, 46143, 138429, 268313, 804939, 2414817, 7244451, 21733353]

約数ペア:

[(1, 21733353), (3, 7244451), (9, 2414817), (27, 804939), (81, 268313), (157, 138429), (471, 46143), (1413, 15381), (1709, 12717), (4239, 5127)]