21449142

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 72

約数和(自身を含む): 54983448

約数和(自身を除く): 33534306

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 169, 198, 234, 286, 338, 429, 507, 641, 858, 1014, 1282, 1287, 1521, 1859, 1923, 2574, 3042, 3718, 3846, 5577, 5769, 7051, 8333, 11154, 11538, 14102, 16666, 16731, 21153, 24999, 33462, 42306, 49998, 63459, 74997, 91663, 108329, 126918, 149994, 183326, 216658, 274989, 324987, 549978, 649974, 824967, 974961, 1191619, 1649934, 1949922, 2383238, 3574857, 7149714, 10724571, 21449142]

約数ペア:

[(1, 21449142), (2, 10724571), (3, 7149714), (6, 3574857), (9, 2383238), (11, 1949922), (13, 1649934), (18, 1191619), (22, 974961), (26, 824967), (33, 649974), (39, 549978), (66, 324987), (78, 274989), (99, 216658), (117, 183326), (143, 149994), (169, 126918), (198, 108329), (234, 91663), (286, 74997), (338, 63459), (429, 49998), (507, 42306), (641, 33462), (858, 24999), (1014, 21153), (1282, 16731), (1287, 16666), (1521, 14102), (1859, 11538), (1923, 11154), (2574, 8333), (3042, 7051), (3718, 5769), (3846, 5577)]