21371484960

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{706729}}^1$

素因数の和:706760

約数の個数: 192

約数和(自身を含む): 85486060800

約数和(自身を除く): 64114575840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 706729, 1413458, 2120187, 2826916, 3533645, 4240374, 4947103, 5653832, 6360561, 7067290, 8480748, 9894206, 10600935, 11307664, 12721122, 14134580, 14841309, 16961496, 19081683, 19788412, 21201870, 22615328, 24735515, 25442244, 28269160, 29682618, 31802805, 33922992, 38163366, 39576824, 42403740, 44523927, 49471030, 50884488, 56538320, 59365236, 63605610, 67845984, 74206545, 76326732, 79153648, 84807480, 89047854, 95408415, 98942060, 101768976, 113076640, 118730472, 127211220, 133571781, 148413090, 152653464, 158307296, 169614960, 178095708, 190816830, 197884120, 203537952, 222619635, 237460944, 254422440, 267143562, 296826180, 305306928, 339229920, 356191416, 381633660, 395768240, 445239270, 474921888, 508844880, 534287124, 593652360, 610613856, 667858905, 712382832, 763267320, 791536480, 890478540, 1017689760, 1068574248, 1187304720, 1335717810, 1424765664, 1526534640, 1780957080, 2137148496, 2374609440, 2671435620, 3053069280, 3561914160, 4274296992, 5342871240, 7123828320, 10685742480, 21371484960]

約数ペア:

[(1, 21371484960), (2, 10685742480), (3, 7123828320), (4, 5342871240), (5, 4274296992), (6, 3561914160), (7, 3053069280), (8, 2671435620), (9, 2374609440), (10, 2137148496), (12, 1780957080), (14, 1526534640), (15, 1424765664), (16, 1335717810), (18, 1187304720), (20, 1068574248), (21, 1017689760), (24, 890478540), (27, 791536480), (28, 763267320), (30, 712382832), (32, 667858905), (35, 610613856), (36, 593652360), (40, 534287124), (42, 508844880), (45, 474921888), (48, 445239270), (54, 395768240), (56, 381633660), (60, 356191416), (63, 339229920), (70, 305306928), (72, 296826180), (80, 267143562), (84, 254422440), (90, 237460944), (96, 222619635), (105, 203537952), (108, 197884120), (112, 190816830), (120, 178095708), (126, 169614960), (135, 158307296), (140, 152653464), (144, 148413090), (160, 133571781), (168, 127211220), (180, 118730472), (189, 113076640), (210, 101768976), (216, 98942060), (224, 95408415), (240, 89047854), (252, 84807480), (270, 79153648), (280, 76326732), (288, 74206545), (315, 67845984), (336, 63605610), (360, 59365236), (378, 56538320), (420, 50884488), (432, 49471030), (480, 44523927), (504, 42403740), (540, 39576824), (560, 38163366), (630, 33922992), (672, 31802805), (720, 29682618), (756, 28269160), (840, 25442244), (864, 24735515), (945, 22615328), (1008, 21201870), (1080, 19788412), (1120, 19081683), (1260, 16961496), (1440, 14841309), (1512, 14134580), (1680, 12721122), (1890, 11307664), (2016, 10600935), (2160, 9894206), (2520, 8480748), (3024, 7067290), (3360, 6360561), (3780, 5653832), (4320, 4947103), (5040, 4240374), (6048, 3533645), (7560, 2826916), (10080, 2120187), (15120, 1413458), (30240, 706729)]