21491323216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1\times {\mathrm{2287}}^1$

素因数の和:2912

約数の個数: 80

約数和(自身を含む): 45961344000

約数和(自身を除く): 24470020784

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 107, 176, 214, 428, 499, 856, 998, 1177, 1712, 1996, 2287, 2354, 3992, 4574, 4708, 5489, 7984, 9148, 9416, 10978, 18296, 18832, 21956, 25157, 36592, 43912, 50314, 53393, 87824, 100628, 106786, 201256, 213572, 244709, 402512, 427144, 489418, 587323, 854288, 978836, 1141213, 1174646, 1957672, 2282426, 2349292, 2691799, 3915344, 4564852, 4698584, 5383598, 9129704, 9397168, 10767196, 12553343, 18259408, 21534392, 25106686, 43068784, 50213372, 100426744, 122109791, 200853488, 244219582, 488439164, 976878328, 1343207701, 1953756656, 2686415402, 5372830804, 10745661608, 21491323216]

約数ペア:

[(1, 21491323216), (2, 10745661608), (4, 5372830804), (8, 2686415402), (11, 1953756656), (16, 1343207701), (22, 976878328), (44, 488439164), (88, 244219582), (107, 200853488), (176, 122109791), (214, 100426744), (428, 50213372), (499, 43068784), (856, 25106686), (998, 21534392), (1177, 18259408), (1712, 12553343), (1996, 10767196), (2287, 9397168), (2354, 9129704), (3992, 5383598), (4574, 4698584), (4708, 4564852), (5489, 3915344), (7984, 2691799), (9148, 2349292), (9416, 2282426), (10978, 1957672), (18296, 1174646), (18832, 1141213), (21956, 978836), (25157, 854288), (36592, 587323), (43912, 489418), (50314, 427144), (53393, 402512), (87824, 244709), (100628, 213572), (106786, 201256)]