21050959408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:507

約数の個数: 160

約数和(自身を含む): 45563155200

約数和(自身を除く): 24512195792

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 67, 76, 116, 134, 152, 157, 227, 232, 268, 304, 314, 454, 464, 536, 551, 628, 908, 1072, 1102, 1256, 1273, 1816, 1943, 2204, 2512, 2546, 2983, 3632, 3886, 4313, 4408, 4553, 5092, 5966, 6583, 7772, 8626, 8816, 9106, 10184, 10519, 11932, 13166, 15209, 15544, 17252, 18212, 20368, 21038, 23864, 26332, 30418, 31088, 34504, 35639, 36424, 36917, 42076, 47728, 52664, 60836, 69008, 71278, 72848, 73834, 84152, 86507, 105328, 121672, 125077, 142556, 147668, 168304, 173014, 199861, 243344, 250154, 285112, 288971, 295336, 305051, 346028, 399722, 441061, 500308, 570224, 577942, 590672, 610102, 677141, 692056, 799444, 882122, 1000616, 1033531, 1155884, 1220204, 1354282, 1384112, 1598888, 1764244, 2001232, 2067062, 2311768, 2387813, 2440408, 2708564, 3197776, 3528488, 4134124, 4623536, 4775626, 4880816, 5417128, 5795969, 7056976, 8268248, 8380159, 9551252, 10834256, 11591938, 16536496, 16760318, 19102504, 19637089, 23183876, 33520636, 38205008, 39274178, 45368447, 46367752, 67041272, 69246577, 78548356, 90736894, 92735504, 134082544, 138493154, 157096712, 181473788, 276986308, 314193424, 362947576, 553972616, 725895152, 1107945232, 1315684963, 2631369926, 5262739852, 10525479704, 21050959408]

約数ペア:

[(1, 21050959408), (2, 10525479704), (4, 5262739852), (8, 2631369926), (16, 1315684963), (19, 1107945232), (29, 725895152), (38, 553972616), (58, 362947576), (67, 314193424), (76, 276986308), (116, 181473788), (134, 157096712), (152, 138493154), (157, 134082544), (227, 92735504), (232, 90736894), (268, 78548356), (304, 69246577), (314, 67041272), (454, 46367752), (464, 45368447), (536, 39274178), (551, 38205008), (628, 33520636), (908, 23183876), (1072, 19637089), (1102, 19102504), (1256, 16760318), (1273, 16536496), (1816, 11591938), (1943, 10834256), (2204, 9551252), (2512, 8380159), (2546, 8268248), (2983, 7056976), (3632, 5795969), (3886, 5417128), (4313, 4880816), (4408, 4775626), (4553, 4623536), (5092, 4134124), (5966, 3528488), (6583, 3197776), (7772, 2708564), (8626, 2440408), (8816, 2387813), (9106, 2311768), (10184, 2067062), (10519, 2001232), (11932, 1764244), (13166, 1598888), (15209, 1384112), (15544, 1354282), (17252, 1220204), (18212, 1155884), (20368, 1033531), (21038, 1000616), (23864, 882122), (26332, 799444), (30418, 692056), (31088, 677141), (34504, 610102), (35639, 590672), (36424, 577942), (36917, 570224), (42076, 500308), (47728, 441061), (52664, 399722), (60836, 346028), (69008, 305051), (71278, 295336), (72848, 288971), (73834, 285112), (84152, 250154), (86507, 243344), (105328, 199861), (121672, 173014), (125077, 168304), (142556, 147668)]