20887328

素因数分解:

$2^5\times 7^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 52617600

約数和(自身を除く): 31730272

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 154, 173, 176, 196, 224, 308, 343, 346, 352, 392, 539, 616, 686, 692, 784, 1078, 1211, 1232, 1372, 1384, 1568, 1903, 2156, 2422, 2464, 2744, 2768, 3773, 3806, 4312, 4844, 5488, 5536, 7546, 7612, 8477, 8624, 9688, 10976, 13321, 15092, 15224, 16954, 17248, 19376, 26642, 30184, 30448, 33908, 38752, 53284, 59339, 60368, 60896, 67816, 93247, 106568, 118678, 120736, 135632, 186494, 213136, 237356, 271264, 372988, 426272, 474712, 652729, 745976, 949424, 1305458, 1491952, 1898848, 2610916, 2983904, 5221832, 10443664, 20887328]

約数ペア:

[(1, 20887328), (2, 10443664), (4, 5221832), (7, 2983904), (8, 2610916), (11, 1898848), (14, 1491952), (16, 1305458), (22, 949424), (28, 745976), (32, 652729), (44, 474712), (49, 426272), (56, 372988), (77, 271264), (88, 237356), (98, 213136), (112, 186494), (154, 135632), (173, 120736), (176, 118678), (196, 106568), (224, 93247), (308, 67816), (343, 60896), (346, 60368), (352, 59339), (392, 53284), (539, 38752), (616, 33908), (686, 30448), (692, 30184), (784, 26642), (1078, 19376), (1211, 17248), (1232, 16954), (1372, 15224), (1384, 15092), (1568, 13321), (1903, 10976), (2156, 9688), (2422, 8624), (2464, 8477), (2744, 7612), (2768, 7546), (3773, 5536), (3806, 5488), (4312, 4844)]