1397493

素因数分解:

$3^9\times {\mathrm{71}}^1$

素因数の和:98

約数の個数: 20

約数和(自身を含む): 2125728

約数和(自身を除く): 728235

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 729, 1917, 2187, 5751, 6561, 17253, 19683, 51759, 155277, 465831, 1397493]

約数ペア:

[(1, 1397493), (3, 465831), (9, 155277), (27, 51759), (71, 19683), (81, 17253), (213, 6561), (243, 5751), (639, 2187), (729, 1917)]