21036960

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2087}}^1$

素因数の和:2115

約数の個数: 144

約数和(自身を含む): 82083456

約数和(自身を除く): 61046496

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, 2087, 2520, 3360, 4174, 5040, 6261, 8348, 10080, 10435, 12522, 14609, 16696, 18783, 20870, 25044, 29218, 31305, 33392, 37566, 41740, 43827, 50088, 58436, 62610, 66784, 73045, 75132, 83480, 87654, 93915, 100176, 116872, 125220, 131481, 146090, 150264, 166960, 175308, 187830, 200352, 219135, 233744, 250440, 262962, 292180, 300528, 333920, 350616, 375660, 438270, 467488, 500880, 525924, 584360, 601056, 657405, 701232, 751320, 876540, 1001760, 1051848, 1168720, 1314810, 1402464, 1502640, 1753080, 2103696, 2337440, 2629620, 3005280, 3506160, 4207392, 5259240, 7012320, 10518480, 21036960]

約数ペア:

[(1, 21036960), (2, 10518480), (3, 7012320), (4, 5259240), (5, 4207392), (6, 3506160), (7, 3005280), (8, 2629620), (9, 2337440), (10, 2103696), (12, 1753080), (14, 1502640), (15, 1402464), (16, 1314810), (18, 1168720), (20, 1051848), (21, 1001760), (24, 876540), (28, 751320), (30, 701232), (32, 657405), (35, 601056), (36, 584360), (40, 525924), (42, 500880), (45, 467488), (48, 438270), (56, 375660), (60, 350616), (63, 333920), (70, 300528), (72, 292180), (80, 262962), (84, 250440), (90, 233744), (96, 219135), (105, 200352), (112, 187830), (120, 175308), (126, 166960), (140, 150264), (144, 146090), (160, 131481), (168, 125220), (180, 116872), (210, 100176), (224, 93915), (240, 87654), (252, 83480), (280, 75132), (288, 73045), (315, 66784), (336, 62610), (360, 58436), (420, 50088), (480, 43827), (504, 41740), (560, 37566), (630, 33392), (672, 31305), (720, 29218), (840, 25044), (1008, 20870), (1120, 18783), (1260, 16696), (1440, 14609), (1680, 12522), (2016, 10435), (2087, 10080), (2520, 8348), (3360, 6261), (4174, 5040)]