128428569

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{193}}^1\times {\mathrm{691}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 188484192

約数和(自身を除く): 60055623

約数列:

[1, 3, 9, 107, 193, 321, 579, 691, 963, 1737, 2073, 6219, 20651, 61953, 73937, 133363, 185859, 221811, 400089, 665433, 1200267, 14269841, 42809523, 128428569]

約数ペア:

[(1, 128428569), (3, 42809523), (9, 14269841), (107, 1200267), (193, 665433), (321, 400089), (579, 221811), (691, 185859), (963, 133363), (1737, 73937), (2073, 61953), (6219, 20651)]