21601440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2143}}^1$

素因数の和:2171

約数の個数: 144

約数和(自身を含む): 84284928

約数和(自身を除く): 62683488

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, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2143, 2520, 3360, 4286, 5040, 6429, 8572, 10080, 10715, 12858, 15001, 17144, 19287, 21430, 25716, 30002, 32145, 34288, 38574, 42860, 45003, 51432, 60004, 64290, 68576, 75005, 77148, 85720, 90006, 96435, 102864, 120008, 128580, 135009, 150010, 154296, 171440, 180012, 192870, 205728, 225015, 240016, 257160, 270018, 300020, 308592, 342880, 360024, 385740, 450030, 480032, 514320, 540036, 600040, 617184, 675045, 720048, 771480, 900060, 1028640, 1080072, 1200080, 1350090, 1440096, 1542960, 1800120, 2160144, 2400160, 2700180, 3085920, 3600240, 4320288, 5400360, 7200480, 10800720, 21601440]

約数ペア:

[(1, 21601440), (2, 10800720), (3, 7200480), (4, 5400360), (5, 4320288), (6, 3600240), (7, 3085920), (8, 2700180), (9, 2400160), (10, 2160144), (12, 1800120), (14, 1542960), (15, 1440096), (16, 1350090), (18, 1200080), (20, 1080072), (21, 1028640), (24, 900060), (28, 771480), (30, 720048), (32, 675045), (35, 617184), (36, 600040), (40, 540036), (42, 514320), (45, 480032), (48, 450030), (56, 385740), (60, 360024), (63, 342880), (70, 308592), (72, 300020), (80, 270018), (84, 257160), (90, 240016), (96, 225015), (105, 205728), (112, 192870), (120, 180012), (126, 171440), (140, 154296), (144, 150010), (160, 135009), (168, 128580), (180, 120008), (210, 102864), (224, 96435), (240, 90006), (252, 85720), (280, 77148), (288, 75005), (315, 68576), (336, 64290), (360, 60004), (420, 51432), (480, 45003), (504, 42860), (560, 38574), (630, 34288), (672, 32145), (720, 30002), (840, 25716), (1008, 21430), (1120, 19287), (1260, 17144), (1440, 15001), (1680, 12858), (2016, 10715), (2143, 10080), (2520, 8572), (3360, 6429), (4286, 5040)]