51913257

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 85494528

約数和(自身を除く): 33581271

約数列:

[1, 3, 11, 17, 33, 37, 41, 51, 61, 111, 123, 183, 187, 407, 451, 561, 629, 671, 697, 1037, 1221, 1353, 1517, 1887, 2013, 2091, 2257, 2501, 3111, 4551, 6771, 6919, 7503, 7667, 11407, 16687, 20757, 23001, 24827, 25789, 27511, 34221, 38369, 42517, 50061, 74481, 77367, 82533, 92537, 115107, 127551, 277611, 283679, 422059, 467687, 851037, 1017907, 1266177, 1403061, 1573129, 3053721, 4719387, 17304419, 51913257]

約数ペア:

[(1, 51913257), (3, 17304419), (11, 4719387), (17, 3053721), (33, 1573129), (37, 1403061), (41, 1266177), (51, 1017907), (61, 851037), (111, 467687), (123, 422059), (183, 283679), (187, 277611), (407, 127551), (451, 115107), (561, 92537), (629, 82533), (671, 77367), (697, 74481), (1037, 50061), (1221, 42517), (1353, 38369), (1517, 34221), (1887, 27511), (2013, 25789), (2091, 24827), (2257, 23001), (2501, 20757), (3111, 16687), (4551, 11407), (6771, 7667), (6919, 7503)]