21000944640

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{105173}}^1$

素因数の和:105214

約数の個数: 176

約数和(自身を含む): 72337835808

約数和(自身を除く): 51336891168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 768, 780, 832, 960, 1024, 1040, 1248, 1280, 1536, 1560, 1664, 1920, 2080, 2496, 2560, 3072, 3120, 3328, 3840, 4160, 4992, 5120, 6240, 6656, 7680, 8320, 9984, 12480, 13312, 15360, 16640, 19968, 24960, 33280, 39936, 49920, 66560, 99840, 105173, 199680, 210346, 315519, 420692, 525865, 631038, 841384, 1051730, 1262076, 1367249, 1577595, 1682768, 2103460, 2524152, 2734498, 3155190, 3365536, 4101747, 4206920, 5048304, 5468996, 6310380, 6731072, 6836245, 8203494, 8413840, 10096608, 10937992, 12620760, 13462144, 13672490, 16406988, 16827680, 20193216, 20508735, 21875984, 25241520, 26924288, 27344980, 32813976, 33655360, 40386432, 41017470, 43751968, 50483040, 53848576, 54689960, 65627952, 67310720, 80772864, 82034940, 87503936, 100966080, 107697152, 109379920, 131255904, 134621440, 161545728, 164069880, 175007872, 201932160, 218759840, 262511808, 269242880, 323091456, 328139760, 350015744, 403864320, 437519680, 525023616, 538485760, 656279520, 700031488, 807728640, 875039360, 1050047232, 1312559040, 1400062976, 1615457280, 1750078720, 2100094464, 2625118080, 3500157440, 4200188928, 5250236160, 7000314880, 10500472320, 21000944640]

約数ペア:

[(1, 21000944640), (2, 10500472320), (3, 7000314880), (4, 5250236160), (5, 4200188928), (6, 3500157440), (8, 2625118080), (10, 2100094464), (12, 1750078720), (13, 1615457280), (15, 1400062976), (16, 1312559040), (20, 1050047232), (24, 875039360), (26, 807728640), (30, 700031488), (32, 656279520), (39, 538485760), (40, 525023616), (48, 437519680), (52, 403864320), (60, 350015744), (64, 328139760), (65, 323091456), (78, 269242880), (80, 262511808), (96, 218759840), (104, 201932160), (120, 175007872), (128, 164069880), (130, 161545728), (156, 134621440), (160, 131255904), (192, 109379920), (195, 107697152), (208, 100966080), (240, 87503936), (256, 82034940), (260, 80772864), (312, 67310720), (320, 65627952), (384, 54689960), (390, 53848576), (416, 50483040), (480, 43751968), (512, 41017470), (520, 40386432), (624, 33655360), (640, 32813976), (768, 27344980), (780, 26924288), (832, 25241520), (960, 21875984), (1024, 20508735), (1040, 20193216), (1248, 16827680), (1280, 16406988), (1536, 13672490), (1560, 13462144), (1664, 12620760), (1920, 10937992), (2080, 10096608), (2496, 8413840), (2560, 8203494), (3072, 6836245), (3120, 6731072), (3328, 6310380), (3840, 5468996), (4160, 5048304), (4992, 4206920), (5120, 4101747), (6240, 3365536), (6656, 3155190), (7680, 2734498), (8320, 2524152), (9984, 2103460), (12480, 1682768), (13312, 1577595), (15360, 1367249), (16640, 1262076), (19968, 1051730), (24960, 841384), (33280, 631038), (39936, 525865), (49920, 420692), (66560, 315519), (99840, 210346), (105173, 199680)]