21279852

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 144

約数和(自身を含む): 64864800

約数和(自身を除く): 43584948

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 17, 18, 22, 29, 33, 34, 36, 44, 51, 58, 66, 68, 87, 99, 102, 109, 116, 132, 153, 174, 187, 198, 204, 218, 261, 306, 319, 327, 348, 374, 396, 436, 493, 522, 561, 612, 638, 654, 748, 957, 981, 986, 1044, 1122, 1199, 1276, 1308, 1479, 1683, 1853, 1914, 1962, 1972, 2244, 2398, 2871, 2958, 3161, 3366, 3597, 3706, 3828, 3924, 4437, 4796, 5423, 5559, 5742, 5916, 6322, 6732, 7194, 7412, 8874, 9483, 10791, 10846, 11118, 11484, 12644, 14388, 16269, 16677, 17748, 18966, 20383, 21582, 21692, 22236, 28449, 32538, 33354, 34771, 37932, 40766, 43164, 48807, 53737, 56898, 61149, 65076, 66708, 69542, 81532, 97614, 104313, 107474, 113796, 122298, 139084, 161211, 183447, 195228, 208626, 214948, 244596, 312939, 322422, 366894, 417252, 483633, 591107, 625878, 644844, 733788, 967266, 1182214, 1251756, 1773321, 1934532, 2364428, 3546642, 5319963, 7093284, 10639926, 21279852]

約数ペア:

[(1, 21279852), (2, 10639926), (3, 7093284), (4, 5319963), (6, 3546642), (9, 2364428), (11, 1934532), (12, 1773321), (17, 1251756), (18, 1182214), (22, 967266), (29, 733788), (33, 644844), (34, 625878), (36, 591107), (44, 483633), (51, 417252), (58, 366894), (66, 322422), (68, 312939), (87, 244596), (99, 214948), (102, 208626), (109, 195228), (116, 183447), (132, 161211), (153, 139084), (174, 122298), (187, 113796), (198, 107474), (204, 104313), (218, 97614), (261, 81532), (306, 69542), (319, 66708), (327, 65076), (348, 61149), (374, 56898), (396, 53737), (436, 48807), (493, 43164), (522, 40766), (561, 37932), (612, 34771), (638, 33354), (654, 32538), (748, 28449), (957, 22236), (981, 21692), (986, 21582), (1044, 20383), (1122, 18966), (1199, 17748), (1276, 16677), (1308, 16269), (1479, 14388), (1683, 12644), (1853, 11484), (1914, 11118), (1962, 10846), (1972, 10791), (2244, 9483), (2398, 8874), (2871, 7412), (2958, 7194), (3161, 6732), (3366, 6322), (3597, 5916), (3706, 5742), (3828, 5559), (3924, 5423), (4437, 4796)]