21173160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 68584320

約数和(自身を除く): 47411160

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, 107, 120, 136, 170, 194, 204, 214, 255, 291, 321, 340, 388, 408, 428, 485, 510, 535, 582, 642, 680, 776, 856, 970, 1020, 1070, 1164, 1284, 1455, 1605, 1649, 1819, 1940, 2040, 2140, 2328, 2568, 2910, 3210, 3298, 3638, 3880, 4280, 4947, 5457, 5820, 6420, 6596, 7276, 8245, 9095, 9894, 10379, 10914, 11640, 12840, 13192, 14552, 16490, 18190, 19788, 20758, 21828, 24735, 27285, 31137, 32980, 36380, 39576, 41516, 43656, 49470, 51895, 54570, 62274, 65960, 72760, 83032, 98940, 103790, 109140, 124548, 155685, 176443, 197880, 207580, 218280, 249096, 311370, 352886, 415160, 529329, 622740, 705772, 882215, 1058658, 1245480, 1411544, 1764430, 2117316, 2646645, 3528860, 4234632, 5293290, 7057720, 10586580, 21173160]

約数ペア:

[(1, 21173160), (2, 10586580), (3, 7057720), (4, 5293290), (5, 4234632), (6, 3528860), (8, 2646645), (10, 2117316), (12, 1764430), (15, 1411544), (17, 1245480), (20, 1058658), (24, 882215), (30, 705772), (34, 622740), (40, 529329), (51, 415160), (60, 352886), (68, 311370), (85, 249096), (97, 218280), (102, 207580), (107, 197880), (120, 176443), (136, 155685), (170, 124548), (194, 109140), (204, 103790), (214, 98940), (255, 83032), (291, 72760), (321, 65960), (340, 62274), (388, 54570), (408, 51895), (428, 49470), (485, 43656), (510, 41516), (535, 39576), (582, 36380), (642, 32980), (680, 31137), (776, 27285), (856, 24735), (970, 21828), (1020, 20758), (1070, 19788), (1164, 18190), (1284, 16490), (1455, 14552), (1605, 13192), (1649, 12840), (1819, 11640), (1940, 10914), (2040, 10379), (2140, 9894), (2328, 9095), (2568, 8245), (2910, 7276), (3210, 6596), (3298, 6420), (3638, 5820), (3880, 5457), (4280, 4947)]