66291777

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{11527}}^1$

素因数の和:11610

約数の個数: 20

約数和(自身を含む): 100431936

約数和(自身を除く): 34140159

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5751, 11527, 34581, 103743, 311229, 818417, 933687, 2455251, 7365753, 22097259, 66291777]

約数ペア:

[(1, 66291777), (3, 22097259), (9, 7365753), (27, 2455251), (71, 933687), (81, 818417), (213, 311229), (639, 103743), (1917, 34581), (5751, 11527)]