209959209

素因数分解:

$3^4\times {\mathrm{2592089}}^1$

素因数の和:2592101

約数の個数: 10

約数和(自身を含む): 313642890

約数和(自身を除く): 103683681

約数列:

[1, 3, 9, 27, 81, 2592089, 7776267, 23328801, 69986403, 209959209]

約数ペア:

[(1, 209959209), (3, 69986403), (9, 23328801), (27, 7776267), (81, 2592089)]