21214143

素因数分解:

$3^5\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 32276608

約数和(自身を除く): 11062465

約数列:

[1, 3, 9, 27, 67, 81, 201, 243, 603, 1303, 1809, 3909, 5427, 11727, 16281, 35181, 87301, 105543, 261903, 316629, 785709, 2357127, 7071381, 21214143]

約数ペア:

[(1, 21214143), (3, 7071381), (9, 2357127), (27, 785709), (67, 316629), (81, 261903), (201, 105543), (243, 87301), (603, 35181), (1303, 16281), (1809, 11727), (3909, 5427)]