21707568

素因数分解:

$2^4\times 3^3\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:587

約数の個数: 80

約数和(自身を含む): 63016800

約数和(自身を除く): 41309232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 109, 144, 216, 218, 327, 432, 436, 461, 654, 872, 922, 981, 1308, 1383, 1744, 1844, 1962, 2616, 2766, 2943, 3688, 3924, 4149, 5232, 5532, 5886, 7376, 7848, 8298, 11064, 11772, 12447, 15696, 16596, 22128, 23544, 24894, 33192, 47088, 49788, 50249, 66384, 99576, 100498, 150747, 199152, 200996, 301494, 401992, 452241, 602988, 803984, 904482, 1205976, 1356723, 1808964, 2411952, 2713446, 3617928, 5426892, 7235856, 10853784, 21707568]

約数ペア:

[(1, 21707568), (2, 10853784), (3, 7235856), (4, 5426892), (6, 3617928), (8, 2713446), (9, 2411952), (12, 1808964), (16, 1356723), (18, 1205976), (24, 904482), (27, 803984), (36, 602988), (48, 452241), (54, 401992), (72, 301494), (108, 200996), (109, 199152), (144, 150747), (216, 100498), (218, 99576), (327, 66384), (432, 50249), (436, 49788), (461, 47088), (654, 33192), (872, 24894), (922, 23544), (981, 22128), (1308, 16596), (1383, 15696), (1744, 12447), (1844, 11772), (1962, 11064), (2616, 8298), (2766, 7848), (2943, 7376), (3688, 5886), (3924, 5532), (4149, 5232)]