18210213

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 32572800

約数和(自身を除く): 14362587

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 347, 357, 441, 833, 1029, 1041, 1071, 2429, 2499, 3087, 3123, 5831, 5899, 7287, 7497, 17003, 17493, 17697, 21861, 41293, 51009, 52479, 53091, 119021, 123879, 153027, 289051, 357063, 371637, 867153, 1071189, 2023357, 2601459, 6070071, 18210213]

約数ペア:

[(1, 18210213), (3, 6070071), (7, 2601459), (9, 2023357), (17, 1071189), (21, 867153), (49, 371637), (51, 357063), (63, 289051), (119, 153027), (147, 123879), (153, 119021), (343, 53091), (347, 52479), (357, 51009), (441, 41293), (833, 21861), (1029, 17697), (1041, 17493), (1071, 17003), (2429, 7497), (2499, 7287), (3087, 5899), (3123, 5831)]