28700217

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11681}}^1$

素因数の和:11710

約数の個数: 32

約数和(自身を含む): 52335360

約数和(自身を除く): 23635143

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 11681, 35043, 81767, 105129, 151853, 245301, 315387, 455559, 735903, 1062971, 1366677, 2207709, 3188913, 4100031, 9566739, 28700217]

約数ペア:

[(1, 28700217), (3, 9566739), (7, 4100031), (9, 3188913), (13, 2207709), (21, 1366677), (27, 1062971), (39, 735903), (63, 455559), (91, 315387), (117, 245301), (189, 151853), (273, 105129), (351, 81767), (819, 35043), (2457, 11681)]