20709008

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24421}}^1$

素因数の和:24482

約数の個数: 20

約数和(自身を含む): 40882428

約数和(自身を除く): 20173420

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24421, 48842, 97684, 195368, 390736, 1294313, 2588626, 5177252, 10354504, 20709008]

約数ペア:

[(1, 20709008), (2, 10354504), (4, 5177252), (8, 2588626), (16, 1294313), (53, 390736), (106, 195368), (212, 97684), (424, 48842), (848, 24421)]