21073508

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6763}}^1$

素因数の和:6827

約数の個数: 24

約数和(自身を含む): 39772320

約数和(自身を除く): 18698812

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6763, 13526, 27052, 128497, 256994, 277283, 513988, 554566, 1109132, 5268377, 10536754, 21073508]

約数ペア:

[(1, 21073508), (2, 10536754), (4, 5268377), (19, 1109132), (38, 554566), (41, 513988), (76, 277283), (82, 256994), (164, 128497), (779, 27052), (1558, 13526), (3116, 6763)]