21082152

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 45445848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 49, 52, 56, 78, 84, 91, 98, 104, 147, 156, 168, 182, 196, 197, 273, 294, 312, 343, 364, 392, 394, 546, 588, 591, 637, 686, 728, 788, 1029, 1092, 1176, 1182, 1274, 1372, 1379, 1576, 1911, 2058, 2184, 2364, 2548, 2561, 2744, 2758, 3822, 4116, 4137, 4459, 4728, 5096, 5122, 5516, 7644, 7683, 8232, 8274, 8918, 9653, 10244, 11032, 13377, 15288, 15366, 16548, 17836, 17927, 19306, 20488, 26754, 28959, 30732, 33096, 35672, 35854, 38612, 53508, 53781, 57918, 61464, 67571, 71708, 77224, 107016, 107562, 115836, 125489, 135142, 143416, 202713, 215124, 231672, 250978, 270284, 376467, 405426, 430248, 501956, 540568, 752934, 810852, 878423, 1003912, 1505868, 1621704, 1756846, 2635269, 3011736, 3513692, 5270538, 7027384, 10541076, 21082152]

約数ペア:

[(1, 21082152), (2, 10541076), (3, 7027384), (4, 5270538), (6, 3513692), (7, 3011736), (8, 2635269), (12, 1756846), (13, 1621704), (14, 1505868), (21, 1003912), (24, 878423), (26, 810852), (28, 752934), (39, 540568), (42, 501956), (49, 430248), (52, 405426), (56, 376467), (78, 270284), (84, 250978), (91, 231672), (98, 215124), (104, 202713), (147, 143416), (156, 135142), (168, 125489), (182, 115836), (196, 107562), (197, 107016), (273, 77224), (294, 71708), (312, 67571), (343, 61464), (364, 57918), (392, 53781), (394, 53508), (546, 38612), (588, 35854), (591, 35672), (637, 33096), (686, 30732), (728, 28959), (788, 26754), (1029, 20488), (1092, 19306), (1176, 17927), (1182, 17836), (1274, 16548), (1372, 15366), (1379, 15288), (1576, 13377), (1911, 11032), (2058, 10244), (2184, 9653), (2364, 8918), (2548, 8274), (2561, 8232), (2744, 7683), (2758, 7644), (3822, 5516), (4116, 5122), (4137, 5096), (4459, 4728)]