203738913

素因数分解:

$3^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2187

約数の個数: 48

約数和(自身を含む): 354432000

約数和(自身を除く): 150693087

約数列:

[1, 3, 7, 9, 21, 31, 49, 63, 93, 147, 217, 279, 343, 441, 651, 1029, 1519, 1953, 2129, 3087, 4557, 6387, 10633, 13671, 14903, 19161, 31899, 44709, 65999, 95697, 104321, 134127, 197997, 312963, 461993, 593991, 730247, 938889, 1385979, 2190741, 3233951, 4157937, 6572223, 9701853, 22637657, 29105559, 67912971, 203738913]

約数ペア:

[(1, 203738913), (3, 67912971), (7, 29105559), (9, 22637657), (21, 9701853), (31, 6572223), (49, 4157937), (63, 3233951), (93, 2190741), (147, 1385979), (217, 938889), (279, 730247), (343, 593991), (441, 461993), (651, 312963), (1029, 197997), (1519, 134127), (1953, 104321), (2129, 95697), (3087, 65999), (4557, 44709), (6387, 31899), (10633, 19161), (13671, 14903)]