21257762

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1\times {\mathrm{653}}^1$

素因数の和:1093

約数の個数: 16

約数和(自身を含む): 32796792

約数和(自身を除く): 11539030

約数列:

[1, 2, 41, 82, 397, 653, 794, 1306, 16277, 26773, 32554, 53546, 259241, 518482, 10628881, 21257762]

約数ペア:

[(1, 21257762), (2, 10628881), (41, 518482), (82, 259241), (397, 53546), (653, 32554), (794, 26773), (1306, 16277)]