26784405

素因数分解:

$3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{997}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 47904000

約数和(自身を除く): 21119595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 199, 597, 995, 997, 1791, 2985, 2991, 4985, 5373, 8955, 8973, 14955, 26865, 26919, 44865, 134595, 198403, 595209, 992015, 1785627, 2976045, 5356881, 8928135, 26784405]

約数ペア:

[(1, 26784405), (3, 8928135), (5, 5356881), (9, 2976045), (15, 1785627), (27, 992015), (45, 595209), (135, 198403), (199, 134595), (597, 44865), (995, 26919), (997, 26865), (1791, 14955), (2985, 8973), (2991, 8955), (4985, 5373)]