21407276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4547}}^1$

素因数の和:4669

約数の個数: 24

約数和(自身を含む): 41259456

約数和(自身を除く): 19852180

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4547, 4708, 9094, 18188, 50017, 100034, 200068, 486529, 973058, 1946116, 5351819, 10703638, 21407276]

約数ペア:

[(1, 21407276), (2, 10703638), (4, 5351819), (11, 1946116), (22, 973058), (44, 486529), (107, 200068), (214, 100034), (428, 50017), (1177, 18188), (2354, 9094), (4547, 4708)]