21273408

素因数分解:

$2^6\times 3^3\times {\mathrm{13}}^1\times {\mathrm{947}}^1$

素因数の和:981

約数の個数: 112

約数和(自身を含む): 67421760

約数和(自身を除く): 46148352

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, 144, 156, 192, 208, 216, 234, 288, 312, 351, 416, 432, 468, 576, 624, 702, 832, 864, 936, 947, 1248, 1404, 1728, 1872, 1894, 2496, 2808, 2841, 3744, 3788, 5616, 5682, 7488, 7576, 8523, 11232, 11364, 12311, 15152, 17046, 22464, 22728, 24622, 25569, 30304, 34092, 36933, 45456, 49244, 51138, 60608, 68184, 73866, 90912, 98488, 102276, 110799, 136368, 147732, 181824, 196976, 204552, 221598, 272736, 295464, 332397, 393952, 409104, 443196, 545472, 590928, 664794, 787904, 818208, 886392, 1181856, 1329588, 1636416, 1772784, 2363712, 2659176, 3545568, 5318352, 7091136, 10636704, 21273408]

約数ペア:

[(1, 21273408), (2, 10636704), (3, 7091136), (4, 5318352), (6, 3545568), (8, 2659176), (9, 2363712), (12, 1772784), (13, 1636416), (16, 1329588), (18, 1181856), (24, 886392), (26, 818208), (27, 787904), (32, 664794), (36, 590928), (39, 545472), (48, 443196), (52, 409104), (54, 393952), (64, 332397), (72, 295464), (78, 272736), (96, 221598), (104, 204552), (108, 196976), (117, 181824), (144, 147732), (156, 136368), (192, 110799), (208, 102276), (216, 98488), (234, 90912), (288, 73866), (312, 68184), (351, 60608), (416, 51138), (432, 49244), (468, 45456), (576, 36933), (624, 34092), (702, 30304), (832, 25569), (864, 24622), (936, 22728), (947, 22464), (1248, 17046), (1404, 15152), (1728, 12311), (1872, 11364), (1894, 11232), (2496, 8523), (2808, 7576), (2841, 7488), (3744, 5682), (3788, 5616)]