18970767

素因数分解:

$3^6\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:562

約数の個数: 28

約数和(自身を含む): 29038824

約数和(自身を除く): 10068057

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 491, 729, 1431, 1473, 4293, 4419, 12879, 13257, 26023, 38637, 39771, 78069, 119313, 234207, 357939, 702621, 2107863, 6323589, 18970767]

約数ペア:

[(1, 18970767), (3, 6323589), (9, 2107863), (27, 702621), (53, 357939), (81, 234207), (159, 119313), (243, 78069), (477, 39771), (491, 38637), (729, 26023), (1431, 13257), (1473, 12879), (4293, 4419)]