21309120

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{151}}^1$

素因数の和:188

約数の個数: 252

約数和(自身を含む): 85825584

約数和(自身を除く): 64516464

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 151, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 302, 315, 320, 336, 360, 392, 420, 441, 448, 453, 480, 490, 504, 560, 576, 588, 604, 630, 672, 720, 735, 755, 784, 840, 882, 906, 960, 980, 1008, 1057, 1120, 1176, 1208, 1260, 1344, 1359, 1440, 1470, 1510, 1568, 1680, 1764, 1812, 1960, 2016, 2114, 2205, 2240, 2265, 2352, 2416, 2520, 2718, 2880, 2940, 3020, 3136, 3171, 3360, 3528, 3624, 3920, 4032, 4228, 4410, 4530, 4704, 4832, 5040, 5285, 5436, 5880, 6040, 6342, 6720, 6795, 7056, 7248, 7399, 7840, 8456, 8820, 9060, 9408, 9513, 9664, 10080, 10570, 10872, 11760, 12080, 12684, 13590, 14112, 14496, 14798, 15680, 15855, 16912, 17640, 18120, 19026, 20160, 21140, 21744, 22197, 23520, 24160, 25368, 27180, 28224, 28992, 29596, 31710, 33824, 35280, 36240, 36995, 38052, 42280, 43488, 44394, 47040, 47565, 48320, 50736, 54360, 59192, 63420, 66591, 67648, 70560, 72480, 73990, 76104, 84560, 86976, 88788, 95130, 101472, 108720, 110985, 118384, 126840, 133182, 141120, 144960, 147980, 152208, 169120, 177576, 190260, 202944, 217440, 221970, 236768, 253680, 266364, 295960, 304416, 332955, 338240, 355152, 380520, 434880, 443940, 473536, 507360, 532728, 591920, 608832, 665910, 710304, 761040, 887880, 1014720, 1065456, 1183840, 1331820, 1420608, 1522080, 1775760, 2130912, 2367680, 2663640, 3044160, 3551520, 4261824, 5327280, 7103040, 10654560, 21309120]

約数ペア:

[(1, 21309120), (2, 10654560), (3, 7103040), (4, 5327280), (5, 4261824), (6, 3551520), (7, 3044160), (8, 2663640), (9, 2367680), (10, 2130912), (12, 1775760), (14, 1522080), (15, 1420608), (16, 1331820), (18, 1183840), (20, 1065456), (21, 1014720), (24, 887880), (28, 761040), (30, 710304), (32, 665910), (35, 608832), (36, 591920), (40, 532728), (42, 507360), (45, 473536), (48, 443940), (49, 434880), (56, 380520), (60, 355152), (63, 338240), (64, 332955), (70, 304416), (72, 295960), (80, 266364), (84, 253680), (90, 236768), (96, 221970), (98, 217440), (105, 202944), (112, 190260), (120, 177576), (126, 169120), (140, 152208), (144, 147980), (147, 144960), (151, 141120), (160, 133182), (168, 126840), (180, 118384), (192, 110985), (196, 108720), (210, 101472), (224, 95130), (240, 88788), (245, 86976), (252, 84560), (280, 76104), (288, 73990), (294, 72480), (302, 70560), (315, 67648), (320, 66591), (336, 63420), (360, 59192), (392, 54360), (420, 50736), (441, 48320), (448, 47565), (453, 47040), (480, 44394), (490, 43488), (504, 42280), (560, 38052), (576, 36995), (588, 36240), (604, 35280), (630, 33824), (672, 31710), (720, 29596), (735, 28992), (755, 28224), (784, 27180), (840, 25368), (882, 24160), (906, 23520), (960, 22197), (980, 21744), (1008, 21140), (1057, 20160), (1120, 19026), (1176, 18120), (1208, 17640), (1260, 16912), (1344, 15855), (1359, 15680), (1440, 14798), (1470, 14496), (1510, 14112), (1568, 13590), (1680, 12684), (1764, 12080), (1812, 11760), (1960, 10872), (2016, 10570), (2114, 10080), (2205, 9664), (2240, 9513), (2265, 9408), (2352, 9060), (2416, 8820), (2520, 8456), (2718, 7840), (2880, 7399), (2940, 7248), (3020, 7056), (3136, 6795), (3171, 6720), (3360, 6342), (3528, 6040), (3624, 5880), (3920, 5436), (4032, 5285), (4228, 5040), (4410, 4832), (4530, 4704)]