21568920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 69854400

約数和(自身を除く): 48285480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 97, 102, 109, 120, 136, 170, 194, 204, 218, 255, 291, 327, 340, 388, 408, 436, 485, 510, 545, 582, 654, 680, 776, 872, 970, 1020, 1090, 1164, 1308, 1455, 1635, 1649, 1853, 1940, 2040, 2180, 2328, 2616, 2910, 3270, 3298, 3706, 3880, 4360, 4947, 5559, 5820, 6540, 6596, 7412, 8245, 9265, 9894, 10573, 11118, 11640, 13080, 13192, 14824, 16490, 18530, 19788, 21146, 22236, 24735, 27795, 31719, 32980, 37060, 39576, 42292, 44472, 49470, 52865, 55590, 63438, 65960, 74120, 84584, 98940, 105730, 111180, 126876, 158595, 179741, 197880, 211460, 222360, 253752, 317190, 359482, 422920, 539223, 634380, 718964, 898705, 1078446, 1268760, 1437928, 1797410, 2156892, 2696115, 3594820, 4313784, 5392230, 7189640, 10784460, 21568920]

約数ペア:

[(1, 21568920), (2, 10784460), (3, 7189640), (4, 5392230), (5, 4313784), (6, 3594820), (8, 2696115), (10, 2156892), (12, 1797410), (15, 1437928), (17, 1268760), (20, 1078446), (24, 898705), (30, 718964), (34, 634380), (40, 539223), (51, 422920), (60, 359482), (68, 317190), (85, 253752), (97, 222360), (102, 211460), (109, 197880), (120, 179741), (136, 158595), (170, 126876), (194, 111180), (204, 105730), (218, 98940), (255, 84584), (291, 74120), (327, 65960), (340, 63438), (388, 55590), (408, 52865), (436, 49470), (485, 44472), (510, 42292), (545, 39576), (582, 37060), (654, 32980), (680, 31719), (776, 27795), (872, 24735), (970, 22236), (1020, 21146), (1090, 19788), (1164, 18530), (1308, 16490), (1455, 14824), (1635, 13192), (1649, 13080), (1853, 11640), (1940, 11118), (2040, 10573), (2180, 9894), (2328, 9265), (2616, 8245), (2910, 7412), (3270, 6596), (3298, 6540), (3706, 5820), (3880, 5559), (4360, 4947)]