21543874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{11003}}^1$

素因数の和:11105

約数の個数: 16

約数和(自身を含む): 35652960

約数和(自身を除く): 14109086

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 11003, 22006, 121033, 242066, 979267, 1958534, 10771937, 21543874]

約数ペア:

[(1, 21543874), (2, 10771937), (11, 1958534), (22, 979267), (89, 242066), (178, 121033), (979, 22006), (1958, 11003)]