20975992

素因数分解:

$2^3\times {\mathrm{1571}}^1\times {\mathrm{1669}}^1$

素因数の和:3246

約数の個数: 16

約数和(自身を含む): 39378600

約数和(自身を除く): 18402608

約数列:

[1, 2, 4, 8, 1571, 1669, 3142, 3338, 6284, 6676, 12568, 13352, 2621999, 5243998, 10487996, 20975992]

約数ペア:

[(1, 20975992), (2, 10487996), (4, 5243998), (8, 2621999), (1571, 13352), (1669, 12568), (3142, 6676), (3338, 6284)]