8172009

素因数分解:

$3^4\times {\mathrm{233}}^1\times {\mathrm{433}}^1$

素因数の和:678

約数の個数: 20

約数和(自身を含む): 12288276

約数和(自身を除く): 4116267

約数列:

[1, 3, 9, 27, 81, 233, 433, 699, 1299, 2097, 3897, 6291, 11691, 18873, 35073, 100889, 302667, 908001, 2724003, 8172009]

約数ペア:

[(1, 8172009), (3, 2724003), (9, 908001), (27, 302667), (81, 100889), (233, 35073), (433, 18873), (699, 11691), (1299, 6291), (2097, 3897)]