21670968

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:169

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 42195912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 23, 24, 33, 43, 44, 46, 66, 69, 83, 86, 88, 92, 129, 132, 138, 166, 172, 184, 249, 253, 258, 264, 276, 332, 344, 473, 498, 506, 516, 552, 664, 759, 913, 946, 989, 996, 1012, 1032, 1419, 1518, 1826, 1892, 1909, 1978, 1992, 2024, 2739, 2838, 2967, 3036, 3569, 3652, 3784, 3818, 3956, 5478, 5676, 5727, 5934, 6072, 7138, 7304, 7636, 7912, 10707, 10879, 10956, 11352, 11454, 11868, 14276, 15272, 20999, 21414, 21758, 21912, 22908, 23736, 28552, 32637, 39259, 41998, 42828, 43516, 45816, 62997, 65274, 78518, 82087, 83996, 85656, 87032, 117777, 125994, 130548, 157036, 164174, 167992, 235554, 246261, 251988, 261096, 314072, 328348, 471108, 492522, 503976, 656696, 902957, 942216, 985044, 1805914, 1970088, 2708871, 3611828, 5417742, 7223656, 10835484, 21670968]

約数ペア:

[(1, 21670968), (2, 10835484), (3, 7223656), (4, 5417742), (6, 3611828), (8, 2708871), (11, 1970088), (12, 1805914), (22, 985044), (23, 942216), (24, 902957), (33, 656696), (43, 503976), (44, 492522), (46, 471108), (66, 328348), (69, 314072), (83, 261096), (86, 251988), (88, 246261), (92, 235554), (129, 167992), (132, 164174), (138, 157036), (166, 130548), (172, 125994), (184, 117777), (249, 87032), (253, 85656), (258, 83996), (264, 82087), (276, 78518), (332, 65274), (344, 62997), (473, 45816), (498, 43516), (506, 42828), (516, 41998), (552, 39259), (664, 32637), (759, 28552), (913, 23736), (946, 22908), (989, 21912), (996, 21758), (1012, 21414), (1032, 20999), (1419, 15272), (1518, 14276), (1826, 11868), (1892, 11454), (1909, 11352), (1978, 10956), (1992, 10879), (2024, 10707), (2739, 7912), (2838, 7636), (2967, 7304), (3036, 7138), (3569, 6072), (3652, 5934), (3784, 5727), (3818, 5676), (3956, 5478)]