21985920

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1$

素因数の和:383

約数の個数: 192

約数和(自身を含む): 83060640

約数和(自身を除く): 61074720

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, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 347, 352, 360, 384, 396, 440, 480, 495, 528, 576, 640, 660, 694, 704, 720, 792, 880, 960, 990, 1041, 1056, 1152, 1320, 1388, 1408, 1440, 1584, 1735, 1760, 1920, 1980, 2082, 2112, 2640, 2776, 2880, 3123, 3168, 3470, 3520, 3817, 3960, 4164, 4224, 5205, 5280, 5552, 5760, 6246, 6336, 6940, 7040, 7634, 7920, 8328, 10410, 10560, 11104, 11451, 12492, 12672, 13880, 15268, 15615, 15840, 16656, 19085, 20820, 21120, 22208, 22902, 24984, 27760, 30536, 31230, 31680, 33312, 34353, 38170, 41640, 44416, 45804, 49968, 55520, 57255, 61072, 62460, 63360, 66624, 68706, 76340, 83280, 91608, 99936, 111040, 114510, 122144, 124920, 133248, 137412, 152680, 166560, 171765, 183216, 199872, 222080, 229020, 244288, 249840, 274824, 305360, 333120, 343530, 366432, 399744, 458040, 488576, 499680, 549648, 610720, 666240, 687060, 732864, 916080, 999360, 1099296, 1221440, 1374120, 1465728, 1832160, 1998720, 2198592, 2442880, 2748240, 3664320, 4397184, 5496480, 7328640, 10992960, 21985920]

約数ペア:

[(1, 21985920), (2, 10992960), (3, 7328640), (4, 5496480), (5, 4397184), (6, 3664320), (8, 2748240), (9, 2442880), (10, 2198592), (11, 1998720), (12, 1832160), (15, 1465728), (16, 1374120), (18, 1221440), (20, 1099296), (22, 999360), (24, 916080), (30, 732864), (32, 687060), (33, 666240), (36, 610720), (40, 549648), (44, 499680), (45, 488576), (48, 458040), (55, 399744), (60, 366432), (64, 343530), (66, 333120), (72, 305360), (80, 274824), (88, 249840), (90, 244288), (96, 229020), (99, 222080), (110, 199872), (120, 183216), (128, 171765), (132, 166560), (144, 152680), (160, 137412), (165, 133248), (176, 124920), (180, 122144), (192, 114510), (198, 111040), (220, 99936), (240, 91608), (264, 83280), (288, 76340), (320, 68706), (330, 66624), (347, 63360), (352, 62460), (360, 61072), (384, 57255), (396, 55520), (440, 49968), (480, 45804), (495, 44416), (528, 41640), (576, 38170), (640, 34353), (660, 33312), (694, 31680), (704, 31230), (720, 30536), (792, 27760), (880, 24984), (960, 22902), (990, 22208), (1041, 21120), (1056, 20820), (1152, 19085), (1320, 16656), (1388, 15840), (1408, 15615), (1440, 15268), (1584, 13880), (1735, 12672), (1760, 12492), (1920, 11451), (1980, 11104), (2082, 10560), (2112, 10410), (2640, 8328), (2776, 7920), (2880, 7634), (3123, 7040), (3168, 6940), (3470, 6336), (3520, 6246), (3817, 5760), (3960, 5552), (4164, 5280), (4224, 5205)]