21018852960

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{102551}}^1$

素因数の和:102637

約数の個数: 192

約数和(自身を含む): 76909077504

約数和(自身を除く): 55890224544

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 105, 112, 120, 122, 140, 160, 168, 183, 210, 224, 240, 244, 280, 305, 336, 366, 420, 427, 480, 488, 560, 610, 672, 732, 840, 854, 915, 976, 1120, 1220, 1281, 1464, 1680, 1708, 1830, 1952, 2135, 2440, 2562, 2928, 3360, 3416, 3660, 4270, 4880, 5124, 5856, 6405, 6832, 7320, 8540, 9760, 10248, 12810, 13664, 14640, 17080, 20496, 25620, 29280, 34160, 40992, 51240, 68320, 102480, 102551, 204960, 205102, 307653, 410204, 512755, 615306, 717857, 820408, 1025510, 1230612, 1435714, 1538265, 1640816, 2051020, 2153571, 2461224, 2871428, 3076530, 3281632, 3589285, 4102040, 4307142, 4922448, 5742856, 6153060, 6255611, 7178570, 8204080, 8614284, 9844896, 10767855, 11485712, 12306120, 12511222, 14357140, 16408160, 17228568, 18766833, 21535710, 22971424, 24612240, 25022444, 28714280, 31278055, 34457136, 37533666, 43071420, 43789277, 49224480, 50044888, 57428560, 62556110, 68914272, 75067332, 86142840, 87578554, 93834165, 100089776, 114857120, 125112220, 131367831, 150134664, 172285680, 175157108, 187668330, 200179552, 218946385, 250224440, 262735662, 300269328, 344571360, 350314216, 375336660, 437892770, 500448880, 525471324, 600538656, 656839155, 700628432, 750673320, 875785540, 1000897760, 1050942648, 1313678310, 1401256864, 1501346640, 1751571080, 2101885296, 2627356620, 3002693280, 3503142160, 4203770592, 5254713240, 7006284320, 10509426480, 21018852960]

約数ペア:

[(1, 21018852960), (2, 10509426480), (3, 7006284320), (4, 5254713240), (5, 4203770592), (6, 3503142160), (7, 3002693280), (8, 2627356620), (10, 2101885296), (12, 1751571080), (14, 1501346640), (15, 1401256864), (16, 1313678310), (20, 1050942648), (21, 1000897760), (24, 875785540), (28, 750673320), (30, 700628432), (32, 656839155), (35, 600538656), (40, 525471324), (42, 500448880), (48, 437892770), (56, 375336660), (60, 350314216), (61, 344571360), (70, 300269328), (80, 262735662), (84, 250224440), (96, 218946385), (105, 200179552), (112, 187668330), (120, 175157108), (122, 172285680), (140, 150134664), (160, 131367831), (168, 125112220), (183, 114857120), (210, 100089776), (224, 93834165), (240, 87578554), (244, 86142840), (280, 75067332), (305, 68914272), (336, 62556110), (366, 57428560), (420, 50044888), (427, 49224480), (480, 43789277), (488, 43071420), (560, 37533666), (610, 34457136), (672, 31278055), (732, 28714280), (840, 25022444), (854, 24612240), (915, 22971424), (976, 21535710), (1120, 18766833), (1220, 17228568), (1281, 16408160), (1464, 14357140), (1680, 12511222), (1708, 12306120), (1830, 11485712), (1952, 10767855), (2135, 9844896), (2440, 8614284), (2562, 8204080), (2928, 7178570), (3360, 6255611), (3416, 6153060), (3660, 5742856), (4270, 4922448), (4880, 4307142), (5124, 4102040), (5856, 3589285), (6405, 3281632), (6832, 3076530), (7320, 2871428), (8540, 2461224), (9760, 2153571), (10248, 2051020), (12810, 1640816), (13664, 1538265), (14640, 1435714), (17080, 1230612), (20496, 1025510), (25620, 820408), (29280, 717857), (34160, 615306), (40992, 512755), (51240, 410204), (68320, 307653), (102480, 205102), (102551, 204960)]