81642663

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{394409}}^1$

素因数の和:394438

約数の個数: 12

約数和(自身を含む): 123055920

約数和(自身を除く): 41413257

約数列:

[1, 3, 9, 23, 69, 207, 394409, 1183227, 3549681, 9071407, 27214221, 81642663]

約数ペア:

[(1, 81642663), (3, 27214221), (9, 9071407), (23, 3549681), (69, 1183227), (207, 394409)]