208520757

素因数分解:

$3^3\times {\mathrm{197}}^2\times {\mathrm{199}}^1$

素因数の和:602

約数の個数: 24

約数和(自身を含む): 312056000

約数和(自身を除く): 103535243

約数列:

[1, 3, 9, 27, 197, 199, 591, 597, 1773, 1791, 5319, 5373, 38809, 39203, 116427, 117609, 349281, 352827, 1047843, 1058481, 7722991, 23168973, 69506919, 208520757]

約数ペア:

[(1, 208520757), (3, 69506919), (9, 23168973), (27, 7722991), (197, 1058481), (199, 1047843), (591, 352827), (597, 349281), (1773, 117609), (1791, 116427), (5319, 39203), (5373, 38809)]