20763171

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 38025936

約数和(自身を除く): 17262765

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 73, 99, 117, 143, 153, 169, 187, 219, 221, 429, 507, 561, 657, 663, 803, 949, 1241, 1287, 1521, 1683, 1859, 1989, 2409, 2431, 2847, 2873, 3723, 5577, 7227, 7293, 8541, 8619, 10439, 11169, 12337, 13651, 16133, 16731, 21879, 25857, 31317, 31603, 37011, 40953, 48399, 93951, 94809, 111033, 122859, 135707, 145197, 177463, 209729, 284427, 407121, 532389, 629187, 1221363, 1597167, 1887561, 2307019, 6921057, 20763171]

約数ペア:

[(1, 20763171), (3, 6921057), (9, 2307019), (11, 1887561), (13, 1597167), (17, 1221363), (33, 629187), (39, 532389), (51, 407121), (73, 284427), (99, 209729), (117, 177463), (143, 145197), (153, 135707), (169, 122859), (187, 111033), (219, 94809), (221, 93951), (429, 48399), (507, 40953), (561, 37011), (657, 31603), (663, 31317), (803, 25857), (949, 21879), (1241, 16731), (1287, 16133), (1521, 13651), (1683, 12337), (1859, 11169), (1989, 10439), (2409, 8619), (2431, 8541), (2847, 7293), (2873, 7227), (3723, 5577)]