18711966

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:865

約数の個数: 64

約数和(自身を含む): 47190528

約数和(自身を除く): 28478562

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 43, 78, 86, 91, 129, 182, 258, 273, 301, 546, 559, 602, 797, 903, 1118, 1594, 1677, 1806, 2391, 3354, 3913, 4782, 5579, 7826, 10361, 11158, 11739, 16737, 20722, 23478, 31083, 33474, 34271, 62166, 68542, 72527, 102813, 145054, 205626, 217581, 239897, 435162, 445523, 479794, 719691, 891046, 1336569, 1439382, 2673138, 3118661, 6237322, 9355983, 18711966]

約数ペア:

[(1, 18711966), (2, 9355983), (3, 6237322), (6, 3118661), (7, 2673138), (13, 1439382), (14, 1336569), (21, 891046), (26, 719691), (39, 479794), (42, 445523), (43, 435162), (78, 239897), (86, 217581), (91, 205626), (129, 145054), (182, 102813), (258, 72527), (273, 68542), (301, 62166), (546, 34271), (559, 33474), (602, 31083), (797, 23478), (903, 20722), (1118, 16737), (1594, 11739), (1677, 11158), (1806, 10361), (2391, 7826), (3354, 5579), (3913, 4782)]