21000581568

素因数分解:

$2^6\times 3^2\times {\mathrm{443}}^1\times {\mathrm{82301}}^1$

素因数の和:82762

約数の個数: 84

約数和(自身を含む): 60330987288

約数和(自身を除く): 39330405720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 144, 192, 288, 443, 576, 886, 1329, 1772, 2658, 3544, 3987, 5316, 7088, 7974, 10632, 14176, 15948, 21264, 28352, 31896, 42528, 63792, 82301, 85056, 127584, 164602, 246903, 255168, 329204, 493806, 658408, 740709, 987612, 1316816, 1481418, 1975224, 2633632, 2962836, 3950448, 5267264, 5925672, 7900896, 11851344, 15801792, 23702688, 36459343, 47405376, 72918686, 109378029, 145837372, 218756058, 291674744, 328134087, 437512116, 583349488, 656268174, 875024232, 1166698976, 1312536348, 1750048464, 2333397952, 2625072696, 3500096928, 5250145392, 7000193856, 10500290784, 21000581568]

約数ペア:

[(1, 21000581568), (2, 10500290784), (3, 7000193856), (4, 5250145392), (6, 3500096928), (8, 2625072696), (9, 2333397952), (12, 1750048464), (16, 1312536348), (18, 1166698976), (24, 875024232), (32, 656268174), (36, 583349488), (48, 437512116), (64, 328134087), (72, 291674744), (96, 218756058), (144, 145837372), (192, 109378029), (288, 72918686), (443, 47405376), (576, 36459343), (886, 23702688), (1329, 15801792), (1772, 11851344), (2658, 7900896), (3544, 5925672), (3987, 5267264), (5316, 3950448), (7088, 2962836), (7974, 2633632), (10632, 1975224), (14176, 1481418), (15948, 1316816), (21264, 987612), (28352, 740709), (31896, 658408), (42528, 493806), (63792, 329204), (82301, 255168), (85056, 246903), (127584, 164602)]