21561639120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{4278103}}^1$

素因数の和:4278129

約数の個数: 120

約数和(自身を含む): 82755643776

約数和(自身を除く): 61194004656

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 4278103, 8556206, 12834309, 17112412, 21390515, 25668618, 29946721, 34224824, 38502927, 42781030, 51337236, 59893442, 64171545, 68449648, 77005854, 85562060, 89840163, 102674472, 119786884, 128343090, 149733605, 154011708, 171124120, 179680326, 192514635, 205348944, 239573768, 256686180, 269520489, 299467210, 308023416, 342248240, 359360652, 385029270, 449200815, 479147536, 513372360, 539040978, 598934420, 616046832, 718721304, 770058540, 898401630, 1026744720, 1078081956, 1197868840, 1347602445, 1437442608, 1540117080, 1796803260, 2156163912, 2395737680, 2695204890, 3080234160, 3593606520, 4312327824, 5390409780, 7187213040, 10780819560, 21561639120]

約数ペア:

[(1, 21561639120), (2, 10780819560), (3, 7187213040), (4, 5390409780), (5, 4312327824), (6, 3593606520), (7, 3080234160), (8, 2695204890), (9, 2395737680), (10, 2156163912), (12, 1796803260), (14, 1540117080), (15, 1437442608), (16, 1347602445), (18, 1197868840), (20, 1078081956), (21, 1026744720), (24, 898401630), (28, 770058540), (30, 718721304), (35, 616046832), (36, 598934420), (40, 539040978), (42, 513372360), (45, 479147536), (48, 449200815), (56, 385029270), (60, 359360652), (63, 342248240), (70, 308023416), (72, 299467210), (80, 269520489), (84, 256686180), (90, 239573768), (105, 205348944), (112, 192514635), (120, 179680326), (126, 171124120), (140, 154011708), (144, 149733605), (168, 128343090), (180, 119786884), (210, 102674472), (240, 89840163), (252, 85562060), (280, 77005854), (315, 68449648), (336, 64171545), (360, 59893442), (420, 51337236), (504, 42781030), (560, 38502927), (630, 34224824), (720, 29946721), (840, 25668618), (1008, 21390515), (1260, 17112412), (1680, 12834309), (2520, 8556206), (5040, 4278103)]