21686280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2347}}^1$

素因数の和:2379

約数の個数: 128

約数和(自身を含む): 81146880

約数和(自身を除く): 59460600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2310, 2347, 3080, 4620, 4694, 7041, 9240, 9388, 11735, 14082, 16429, 18776, 23470, 25817, 28164, 32858, 35205, 46940, 49287, 51634, 56328, 65716, 70410, 77451, 82145, 93880, 98574, 103268, 129085, 131432, 140820, 154902, 164290, 180719, 197148, 206536, 246435, 258170, 281640, 309804, 328580, 361438, 387255, 394296, 492870, 516340, 542157, 619608, 657160, 722876, 774510, 903595, 985740, 1032680, 1084314, 1445752, 1549020, 1807190, 1971480, 2168628, 2710785, 3098040, 3614380, 4337256, 5421570, 7228760, 10843140, 21686280]

約数ペア:

[(1, 21686280), (2, 10843140), (3, 7228760), (4, 5421570), (5, 4337256), (6, 3614380), (7, 3098040), (8, 2710785), (10, 2168628), (11, 1971480), (12, 1807190), (14, 1549020), (15, 1445752), (20, 1084314), (21, 1032680), (22, 985740), (24, 903595), (28, 774510), (30, 722876), (33, 657160), (35, 619608), (40, 542157), (42, 516340), (44, 492870), (55, 394296), (56, 387255), (60, 361438), (66, 328580), (70, 309804), (77, 281640), (84, 258170), (88, 246435), (105, 206536), (110, 197148), (120, 180719), (132, 164290), (140, 154902), (154, 140820), (165, 131432), (168, 129085), (210, 103268), (220, 98574), (231, 93880), (264, 82145), (280, 77451), (308, 70410), (330, 65716), (385, 56328), (420, 51634), (440, 49287), (462, 46940), (616, 35205), (660, 32858), (770, 28164), (840, 25817), (924, 23470), (1155, 18776), (1320, 16429), (1540, 14082), (1848, 11735), (2310, 9388), (2347, 9240), (3080, 7041), (4620, 4694)]