21157752

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^2$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 66568320

約数和(自身を除く): 45410568

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 107, 132, 154, 168, 214, 231, 264, 308, 321, 428, 462, 616, 642, 749, 856, 924, 1177, 1284, 1498, 1848, 2247, 2354, 2568, 2996, 3531, 4494, 4708, 5992, 7062, 8239, 8988, 9416, 11449, 14124, 16478, 17976, 22898, 24717, 28248, 32956, 34347, 45796, 49434, 65912, 68694, 80143, 91592, 98868, 125939, 137388, 160286, 197736, 240429, 251878, 274776, 320572, 377817, 480858, 503756, 641144, 755634, 881573, 961716, 1007512, 1511268, 1763146, 1923432, 2644719, 3022536, 3526292, 5289438, 7052584, 10578876, 21157752]

約数ペア:

[(1, 21157752), (2, 10578876), (3, 7052584), (4, 5289438), (6, 3526292), (7, 3022536), (8, 2644719), (11, 1923432), (12, 1763146), (14, 1511268), (21, 1007512), (22, 961716), (24, 881573), (28, 755634), (33, 641144), (42, 503756), (44, 480858), (56, 377817), (66, 320572), (77, 274776), (84, 251878), (88, 240429), (107, 197736), (132, 160286), (154, 137388), (168, 125939), (214, 98868), (231, 91592), (264, 80143), (308, 68694), (321, 65912), (428, 49434), (462, 45796), (616, 34347), (642, 32956), (749, 28248), (856, 24717), (924, 22898), (1177, 17976), (1284, 16478), (1498, 14124), (1848, 11449), (2247, 9416), (2354, 8988), (2568, 8239), (2996, 7062), (3531, 5992), (4494, 4708)]