21240884

素因数分解:

$2^2\times 7^1\times {\mathrm{743}}^1\times {\mathrm{1021}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 42580608

約数和(自身を除く): 21339724

約数列:

[1, 2, 4, 7, 14, 28, 743, 1021, 1486, 2042, 2972, 4084, 5201, 7147, 10402, 14294, 20804, 28588, 758603, 1517206, 3034412, 5310221, 10620442, 21240884]

約数ペア:

[(1, 21240884), (2, 10620442), (4, 5310221), (7, 3034412), (14, 1517206), (28, 758603), (743, 28588), (1021, 20804), (1486, 14294), (2042, 10402), (2972, 7147), (4084, 5201)]