20803293

素因数分解:

$3^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 15887907

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 293, 343, 441, 483, 879, 1029, 1127, 1449, 2051, 2637, 3087, 3381, 6153, 6739, 7889, 10143, 14357, 18459, 20217, 23667, 43071, 47173, 60651, 71001, 100499, 129213, 141519, 301497, 330211, 424557, 904491, 990633, 2311477, 2971899, 6934431, 20803293]

約数ペア:

[(1, 20803293), (3, 6934431), (7, 2971899), (9, 2311477), (21, 990633), (23, 904491), (49, 424557), (63, 330211), (69, 301497), (147, 141519), (161, 129213), (207, 100499), (293, 71001), (343, 60651), (441, 47173), (483, 43071), (879, 23667), (1029, 20217), (1127, 18459), (1449, 14357), (2051, 10143), (2637, 7889), (3087, 6739), (3381, 6153)]