21801312

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:682

約数の個数: 120

約数和(自身を含む): 69155856

約数和(自身を除く): 47354544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 288, 312, 324, 351, 416, 432, 468, 624, 647, 648, 702, 864, 936, 1053, 1248, 1294, 1296, 1404, 1872, 1941, 2106, 2588, 2592, 2808, 3744, 3882, 4212, 5176, 5616, 5823, 7764, 8411, 8424, 10352, 11232, 11646, 15528, 16822, 16848, 17469, 20704, 23292, 25233, 31056, 33644, 33696, 34938, 46584, 50466, 52407, 62112, 67288, 69876, 75699, 93168, 100932, 104814, 134576, 139752, 151398, 186336, 201864, 209628, 227097, 269152, 279504, 302796, 403728, 419256, 454194, 559008, 605592, 681291, 807456, 838512, 908388, 1211184, 1362582, 1677024, 1816776, 2422368, 2725164, 3633552, 5450328, 7267104, 10900656, 21801312]

約数ペア:

[(1, 21801312), (2, 10900656), (3, 7267104), (4, 5450328), (6, 3633552), (8, 2725164), (9, 2422368), (12, 1816776), (13, 1677024), (16, 1362582), (18, 1211184), (24, 908388), (26, 838512), (27, 807456), (32, 681291), (36, 605592), (39, 559008), (48, 454194), (52, 419256), (54, 403728), (72, 302796), (78, 279504), (81, 269152), (96, 227097), (104, 209628), (108, 201864), (117, 186336), (144, 151398), (156, 139752), (162, 134576), (208, 104814), (216, 100932), (234, 93168), (288, 75699), (312, 69876), (324, 67288), (351, 62112), (416, 52407), (432, 50466), (468, 46584), (624, 34938), (647, 33696), (648, 33644), (702, 31056), (864, 25233), (936, 23292), (1053, 20704), (1248, 17469), (1294, 16848), (1296, 16822), (1404, 15528), (1872, 11646), (1941, 11232), (2106, 10352), (2588, 8424), (2592, 8411), (2808, 7764), (3744, 5823), (3882, 5616), (4212, 5176)]