257070267

素因数分解:

$3^4\times {\mathrm{809}}^1\times {\mathrm{3923}}^1$

素因数の和:4744

約数の個数: 20

約数和(自身を含む): 384591240

約数和(自身を除く): 127520973

約数列:

[1, 3, 9, 27, 81, 809, 2427, 3923, 7281, 11769, 21843, 35307, 65529, 105921, 317763, 3173707, 9521121, 28563363, 85690089, 257070267]

約数ペア:

[(1, 257070267), (3, 85690089), (9, 28563363), (27, 9521121), (81, 3173707), (809, 317763), (2427, 105921), (3923, 65529), (7281, 35307), (11769, 21843)]