21385677

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{2777}}^1$

素因数の和:2948

約数の個数: 16

約数和(自身を含む): 30402432

約数和(自身を除く): 9016755

約数列:

[1, 3, 17, 51, 151, 453, 2567, 2777, 7701, 8331, 47209, 141627, 419327, 1257981, 7128559, 21385677]

約数ペア:

[(1, 21385677), (3, 7128559), (17, 1257981), (51, 419327), (151, 141627), (453, 47209), (2567, 8331), (2777, 7701)]