28409883

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{953}}^1$

素因数の和:1498

約数の個数: 16

約数和(自身を含む): 39991680

約数和(自身を除く): 11581797

約数列:

[1, 3, 19, 57, 523, 953, 1569, 2859, 9937, 18107, 29811, 54321, 498419, 1495257, 9469961, 28409883]

約数ペア:

[(1, 28409883), (3, 9469961), (19, 1495257), (57, 498419), (523, 54321), (953, 29811), (1569, 18107), (2859, 9937)]