20287503

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{73}}^2$

素因数の和:205

約数の個数: 30

約数和(自身を含む): 31380624

約数和(自身を除く): 11093121

約数列:

[1, 3, 9, 27, 47, 73, 81, 141, 219, 423, 657, 1269, 1971, 3431, 3807, 5329, 5913, 10293, 15987, 30879, 47961, 92637, 143883, 250463, 277911, 431649, 751389, 2254167, 6762501, 20287503]

約数ペア:

[(1, 20287503), (3, 6762501), (9, 2254167), (27, 751389), (47, 431649), (73, 277911), (81, 250463), (141, 143883), (219, 92637), (423, 47961), (657, 30879), (1269, 15987), (1971, 10293), (3431, 5913), (3807, 5329)]