28719429

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1237}}^1$

素因数の和:1420

約数の個数: 16

約数和(自身を含む): 39219840

約数和(自身を除く): 10500411

約数列:

[1, 3, 71, 109, 213, 327, 1237, 3711, 7739, 23217, 87827, 134833, 263481, 404499, 9573143, 28719429]

約数ペア:

[(1, 28719429), (3, 9573143), (71, 404499), (109, 263481), (213, 134833), (327, 87827), (1237, 23217), (3711, 7739)]