21908025720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2897887}}^1$

素因数の和:2897914

約数の個数: 128

約数和(自身を含む): 83459174400

約数和(自身を除く): 61551148680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 2897887, 5795774, 8693661, 11591548, 14489435, 17387322, 20285209, 23183096, 26080983, 28978870, 34774644, 40570418, 43468305, 52161966, 57957740, 60855627, 69549288, 78242949, 81140836, 86936610, 101426045, 104323932, 115915480, 121711254, 130404915, 156485898, 162281672, 173873220, 182566881, 202852090, 208647864, 243422508, 260809830, 304278135, 312971796, 347746440, 365133762, 391214745, 405704180, 486845016, 521619660, 547700643, 608556270, 625943592, 730267524, 782429490, 811408360, 912834405, 1043239320, 1095401286, 1217112540, 1460535048, 1564858980, 1825668810, 2190802572, 2434225080, 2738503215, 3129717960, 3651337620, 4381605144, 5477006430, 7302675240, 10954012860, 21908025720]

約数ペア:

[(1, 21908025720), (2, 10954012860), (3, 7302675240), (4, 5477006430), (5, 4381605144), (6, 3651337620), (7, 3129717960), (8, 2738503215), (9, 2434225080), (10, 2190802572), (12, 1825668810), (14, 1564858980), (15, 1460535048), (18, 1217112540), (20, 1095401286), (21, 1043239320), (24, 912834405), (27, 811408360), (28, 782429490), (30, 730267524), (35, 625943592), (36, 608556270), (40, 547700643), (42, 521619660), (45, 486845016), (54, 405704180), (56, 391214745), (60, 365133762), (63, 347746440), (70, 312971796), (72, 304278135), (84, 260809830), (90, 243422508), (105, 208647864), (108, 202852090), (120, 182566881), (126, 173873220), (135, 162281672), (140, 156485898), (168, 130404915), (180, 121711254), (189, 115915480), (210, 104323932), (216, 101426045), (252, 86936610), (270, 81140836), (280, 78242949), (315, 69549288), (360, 60855627), (378, 57957740), (420, 52161966), (504, 43468305), (540, 40570418), (630, 34774644), (756, 28978870), (840, 26080983), (945, 23183096), (1080, 20285209), (1260, 17387322), (1512, 14489435), (1890, 11591548), (2520, 8693661), (3780, 5795774), (7560, 2897887)]