21520512

素因数分解:

$2^7\times 3^3\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:515

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 47023488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 96, 104, 108, 117, 128, 144, 156, 192, 208, 216, 234, 288, 312, 351, 384, 416, 432, 468, 479, 576, 624, 702, 832, 864, 936, 958, 1152, 1248, 1404, 1437, 1664, 1728, 1872, 1916, 2496, 2808, 2874, 3456, 3744, 3832, 4311, 4992, 5616, 5748, 6227, 7488, 7664, 8622, 11232, 11496, 12454, 12933, 14976, 15328, 17244, 18681, 22464, 22992, 24908, 25866, 30656, 34488, 37362, 44928, 45984, 49816, 51732, 56043, 61312, 68976, 74724, 91968, 99632, 103464, 112086, 137952, 149448, 168129, 183936, 199264, 206928, 224172, 275904, 298896, 336258, 398528, 413856, 448344, 551808, 597792, 672516, 797056, 827712, 896688, 1195584, 1345032, 1655424, 1793376, 2391168, 2690064, 3586752, 5380128, 7173504, 10760256, 21520512]

約数ペア:

[(1, 21520512), (2, 10760256), (3, 7173504), (4, 5380128), (6, 3586752), (8, 2690064), (9, 2391168), (12, 1793376), (13, 1655424), (16, 1345032), (18, 1195584), (24, 896688), (26, 827712), (27, 797056), (32, 672516), (36, 597792), (39, 551808), (48, 448344), (52, 413856), (54, 398528), (64, 336258), (72, 298896), (78, 275904), (96, 224172), (104, 206928), (108, 199264), (117, 183936), (128, 168129), (144, 149448), (156, 137952), (192, 112086), (208, 103464), (216, 99632), (234, 91968), (288, 74724), (312, 68976), (351, 61312), (384, 56043), (416, 51732), (432, 49816), (468, 45984), (479, 44928), (576, 37362), (624, 34488), (702, 30656), (832, 25866), (864, 24908), (936, 22992), (958, 22464), (1152, 18681), (1248, 17244), (1404, 15328), (1437, 14976), (1664, 12933), (1728, 12454), (1872, 11496), (1916, 11232), (2496, 8622), (2808, 7664), (2874, 7488), (3456, 6227), (3744, 5748), (3832, 5616), (4311, 4992)]