21316691

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:323

約数の個数: 24

約数和(自身を含む): 25491312

約数和(自身を除く): 4174621

約数列:

[1, 11, 17, 43, 121, 187, 241, 473, 731, 2057, 2651, 4097, 5203, 8041, 10363, 29161, 45067, 88451, 113993, 176171, 495737, 1253923, 1937881, 21316691]

約数ペア:

[(1, 21316691), (11, 1937881), (17, 1253923), (43, 495737), (121, 176171), (187, 113993), (241, 88451), (473, 45067), (731, 29161), (2057, 10363), (2651, 8041), (4097, 5203)]