208653309

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{14197}}^1$

素因数の和:14297

約数の個数: 24

約数和(自身を含む): 318943872

約数和(自身を除く): 110290563

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1633, 4899, 14197, 14697, 42591, 127773, 326531, 979593, 1007987, 2938779, 3023961, 9071883, 23183701, 69551103, 208653309]

約数ペア:

[(1, 208653309), (3, 69551103), (9, 23183701), (23, 9071883), (69, 3023961), (71, 2938779), (207, 1007987), (213, 979593), (639, 326531), (1633, 127773), (4899, 42591), (14197, 14697)]