21409872

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 65995776

約数和(自身を除く): 44585904

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 23, 24, 33, 41, 43, 44, 46, 48, 66, 69, 82, 86, 88, 92, 123, 129, 132, 138, 164, 172, 176, 184, 246, 253, 258, 264, 276, 328, 344, 368, 451, 473, 492, 506, 516, 528, 552, 656, 688, 759, 902, 943, 946, 984, 989, 1012, 1032, 1104, 1353, 1419, 1518, 1763, 1804, 1886, 1892, 1968, 1978, 2024, 2064, 2706, 2829, 2838, 2967, 3036, 3526, 3608, 3772, 3784, 3956, 4048, 5289, 5412, 5658, 5676, 5934, 6072, 7052, 7216, 7544, 7568, 7912, 10373, 10578, 10824, 10879, 11316, 11352, 11868, 12144, 14104, 15088, 15824, 19393, 20746, 21156, 21648, 21758, 22632, 22704, 23736, 28208, 31119, 32637, 38786, 40549, 41492, 42312, 43516, 45264, 47472, 58179, 62238, 65274, 77572, 81098, 82984, 84624, 87032, 116358, 121647, 124476, 130548, 155144, 162196, 165968, 174064, 232716, 243294, 248952, 261096, 310288, 324392, 446039, 465432, 486588, 497904, 522192, 648784, 892078, 930864, 973176, 1338117, 1784156, 1946352, 2676234, 3568312, 5352468, 7136624, 10704936, 21409872]

約数ペア:

[(1, 21409872), (2, 10704936), (3, 7136624), (4, 5352468), (6, 3568312), (8, 2676234), (11, 1946352), (12, 1784156), (16, 1338117), (22, 973176), (23, 930864), (24, 892078), (33, 648784), (41, 522192), (43, 497904), (44, 486588), (46, 465432), (48, 446039), (66, 324392), (69, 310288), (82, 261096), (86, 248952), (88, 243294), (92, 232716), (123, 174064), (129, 165968), (132, 162196), (138, 155144), (164, 130548), (172, 124476), (176, 121647), (184, 116358), (246, 87032), (253, 84624), (258, 82984), (264, 81098), (276, 77572), (328, 65274), (344, 62238), (368, 58179), (451, 47472), (473, 45264), (492, 43516), (506, 42312), (516, 41492), (528, 40549), (552, 38786), (656, 32637), (688, 31119), (759, 28208), (902, 23736), (943, 22704), (946, 22632), (984, 21758), (989, 21648), (1012, 21156), (1032, 20746), (1104, 19393), (1353, 15824), (1419, 15088), (1518, 14104), (1763, 12144), (1804, 11868), (1886, 11352), (1892, 11316), (1968, 10879), (1978, 10824), (2024, 10578), (2064, 10373), (2706, 7912), (2829, 7568), (2838, 7544), (2967, 7216), (3036, 7052), (3526, 6072), (3608, 5934), (3772, 5676), (3784, 5658), (3956, 5412), (4048, 5289)]