21778306

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2958

約数の個数: 24

約数和(自身を含む): 37078272

約数和(自身を除く): 15299966

約数列:

[1, 2, 11, 22, 31, 62, 121, 242, 341, 682, 2903, 3751, 5806, 7502, 31933, 63866, 89993, 179986, 351263, 702526, 989923, 1979846, 10889153, 21778306]

約数ペア:

[(1, 21778306), (2, 10889153), (11, 1979846), (22, 989923), (31, 702526), (62, 351263), (121, 179986), (242, 89993), (341, 63866), (682, 31933), (2903, 7502), (3751, 5806)]