21343504

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 51746688

約数和(自身を除く): 30403184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 107, 112, 137, 182, 208, 214, 274, 364, 428, 548, 728, 749, 856, 959, 1096, 1391, 1456, 1498, 1712, 1781, 1918, 2192, 2782, 2996, 3562, 3836, 5564, 5992, 7124, 7672, 9737, 11128, 11984, 12467, 14248, 14659, 15344, 19474, 22256, 24934, 28496, 29318, 38948, 49868, 58636, 77896, 99736, 102613, 117272, 155792, 190567, 199472, 205226, 234544, 381134, 410452, 762268, 820904, 1333969, 1524536, 1641808, 2667938, 3049072, 5335876, 10671752, 21343504]

約数ペア:

[(1, 21343504), (2, 10671752), (4, 5335876), (7, 3049072), (8, 2667938), (13, 1641808), (14, 1524536), (16, 1333969), (26, 820904), (28, 762268), (52, 410452), (56, 381134), (91, 234544), (104, 205226), (107, 199472), (112, 190567), (137, 155792), (182, 117272), (208, 102613), (214, 99736), (274, 77896), (364, 58636), (428, 49868), (548, 38948), (728, 29318), (749, 28496), (856, 24934), (959, 22256), (1096, 19474), (1391, 15344), (1456, 14659), (1498, 14248), (1712, 12467), (1781, 11984), (1918, 11128), (2192, 9737), (2782, 7672), (2996, 7124), (3562, 5992), (3836, 5564)]