20884584

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 63360000

約数和(自身を除く): 42475416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 43, 49, 56, 59, 84, 86, 98, 118, 129, 147, 168, 172, 177, 196, 236, 258, 294, 301, 343, 344, 354, 392, 413, 472, 516, 588, 602, 686, 708, 826, 903, 1029, 1032, 1176, 1204, 1239, 1372, 1416, 1652, 1806, 2058, 2107, 2408, 2478, 2537, 2744, 2891, 3304, 3612, 4116, 4214, 4956, 5074, 5782, 6321, 7224, 7611, 8232, 8428, 8673, 9912, 10148, 11564, 12642, 14749, 15222, 16856, 17346, 17759, 20237, 20296, 23128, 25284, 29498, 30444, 34692, 35518, 40474, 44247, 50568, 53277, 58996, 60711, 60888, 69384, 71036, 80948, 88494, 106554, 117992, 121422, 124313, 142072, 161896, 176988, 213108, 242844, 248626, 353976, 372939, 426216, 485688, 497252, 745878, 870191, 994504, 1491756, 1740382, 2610573, 2983512, 3480764, 5221146, 6961528, 10442292, 20884584]

約数ペア:

[(1, 20884584), (2, 10442292), (3, 6961528), (4, 5221146), (6, 3480764), (7, 2983512), (8, 2610573), (12, 1740382), (14, 1491756), (21, 994504), (24, 870191), (28, 745878), (42, 497252), (43, 485688), (49, 426216), (56, 372939), (59, 353976), (84, 248626), (86, 242844), (98, 213108), (118, 176988), (129, 161896), (147, 142072), (168, 124313), (172, 121422), (177, 117992), (196, 106554), (236, 88494), (258, 80948), (294, 71036), (301, 69384), (343, 60888), (344, 60711), (354, 58996), (392, 53277), (413, 50568), (472, 44247), (516, 40474), (588, 35518), (602, 34692), (686, 30444), (708, 29498), (826, 25284), (903, 23128), (1029, 20296), (1032, 20237), (1176, 17759), (1204, 17346), (1239, 16856), (1372, 15222), (1416, 14749), (1652, 12642), (1806, 11564), (2058, 10148), (2107, 9912), (2408, 8673), (2478, 8428), (2537, 8232), (2744, 7611), (2891, 7224), (3304, 6321), (3612, 5782), (4116, 5074), (4214, 4956)]