21653280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1367}}^1$

素因数の和:1399

約数の個数: 144

約数和(自身を含む): 80668224

約数和(自身を除く): 59014944

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1320, 1367, 1440, 1584, 1760, 1980, 2640, 2734, 3168, 3960, 4101, 5280, 5468, 6835, 7920, 8202, 10936, 12303, 13670, 15037, 15840, 16404, 20505, 21872, 24606, 27340, 30074, 32808, 41010, 43744, 45111, 49212, 54680, 60148, 61515, 65616, 75185, 82020, 90222, 98424, 109360, 120296, 123030, 131232, 135333, 150370, 164040, 180444, 196848, 218720, 225555, 240592, 246060, 270666, 300740, 328080, 360888, 393696, 451110, 481184, 492120, 541332, 601480, 656160, 676665, 721776, 902220, 984240, 1082664, 1202960, 1353330, 1443552, 1804440, 1968480, 2165328, 2405920, 2706660, 3608880, 4330656, 5413320, 7217760, 10826640, 21653280]

約数ペア:

[(1, 21653280), (2, 10826640), (3, 7217760), (4, 5413320), (5, 4330656), (6, 3608880), (8, 2706660), (9, 2405920), (10, 2165328), (11, 1968480), (12, 1804440), (15, 1443552), (16, 1353330), (18, 1202960), (20, 1082664), (22, 984240), (24, 902220), (30, 721776), (32, 676665), (33, 656160), (36, 601480), (40, 541332), (44, 492120), (45, 481184), (48, 451110), (55, 393696), (60, 360888), (66, 328080), (72, 300740), (80, 270666), (88, 246060), (90, 240592), (96, 225555), (99, 218720), (110, 196848), (120, 180444), (132, 164040), (144, 150370), (160, 135333), (165, 131232), (176, 123030), (180, 120296), (198, 109360), (220, 98424), (240, 90222), (264, 82020), (288, 75185), (330, 65616), (352, 61515), (360, 60148), (396, 54680), (440, 49212), (480, 45111), (495, 43744), (528, 41010), (660, 32808), (720, 30074), (792, 27340), (880, 24606), (990, 21872), (1056, 20505), (1320, 16404), (1367, 15840), (1440, 15037), (1584, 13670), (1760, 12303), (1980, 10936), (2640, 8202), (2734, 7920), (3168, 6835), (3960, 5468), (4101, 5280)]