210526857

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{36607}}^1$

素因数の和:36690

約数の個数: 20

約数和(自身を含む): 318928896

約数和(自身を除く): 108402039

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 36607, 109821, 329463, 988389, 2599097, 2965167, 7797291, 23391873, 70175619, 210526857]

約数ペア:

[(1, 210526857), (3, 70175619), (9, 23391873), (27, 7797291), (71, 2965167), (81, 2599097), (213, 988389), (639, 329463), (1917, 109821), (5751, 36607)]