18315171

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:393

約数の個数: 48

約数和(自身を含む): 32760000

約数和(自身を除く): 14444829

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 349, 357, 441, 833, 1029, 1047, 1071, 2443, 2499, 3087, 3141, 5831, 5933, 7329, 7497, 17101, 17493, 17799, 21987, 41531, 51303, 52479, 53397, 119707, 124593, 153909, 290717, 359121, 373779, 872151, 1077363, 2035019, 2616453, 6105057, 18315171]

約数ペア:

[(1, 18315171), (3, 6105057), (7, 2616453), (9, 2035019), (17, 1077363), (21, 872151), (49, 373779), (51, 359121), (63, 290717), (119, 153909), (147, 124593), (153, 119707), (343, 53397), (349, 52479), (357, 51303), (441, 41531), (833, 21987), (1029, 17799), (1047, 17493), (1071, 17101), (2443, 7497), (2499, 7329), (3087, 5933), (3141, 5831)]