17838891

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2168

約数の個数: 36

約数和(自身を含む): 31566600

約数和(自身を除く): 13727709

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2129, 2793, 6387, 8379, 14903, 19161, 40451, 44709, 104321, 121353, 134127, 283157, 312963, 364059, 849471, 938889, 1982099, 2548413, 5946297, 17838891]

約数ペア:

[(1, 17838891), (3, 5946297), (7, 2548413), (9, 1982099), (19, 938889), (21, 849471), (49, 364059), (57, 312963), (63, 283157), (133, 134127), (147, 121353), (171, 104321), (399, 44709), (441, 40451), (931, 19161), (1197, 14903), (2129, 8379), (2793, 6387)]