51697863

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 89296896

約数和(自身を除く): 37599033

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 103, 217, 257, 279, 309, 651, 721, 771, 927, 1799, 1953, 2163, 2313, 3193, 5397, 6489, 7967, 9579, 16191, 22351, 23901, 26471, 28737, 55769, 67053, 71703, 79413, 167307, 185297, 201159, 238239, 501921, 555891, 820601, 1667673, 2461803, 5744207, 7385409, 17232621, 51697863]

約数ペア:

[(1, 51697863), (3, 17232621), (7, 7385409), (9, 5744207), (21, 2461803), (31, 1667673), (63, 820601), (93, 555891), (103, 501921), (217, 238239), (257, 201159), (279, 185297), (309, 167307), (651, 79413), (721, 71703), (771, 67053), (927, 55769), (1799, 28737), (1953, 26471), (2163, 23901), (2313, 22351), (3193, 16191), (5397, 9579), (6489, 7967)]