21665436

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4789}}^1$

素因数の和:4838

約数の個数: 48

約数和(自身を含む): 56330400

約数和(自身を除く): 34664964

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 29, 39, 52, 58, 78, 87, 116, 156, 174, 348, 377, 754, 1131, 1508, 2262, 4524, 4789, 9578, 14367, 19156, 28734, 57468, 62257, 124514, 138881, 186771, 249028, 277762, 373542, 416643, 555524, 747084, 833286, 1666572, 1805453, 3610906, 5416359, 7221812, 10832718, 21665436]

約数ペア:

[(1, 21665436), (2, 10832718), (3, 7221812), (4, 5416359), (6, 3610906), (12, 1805453), (13, 1666572), (26, 833286), (29, 747084), (39, 555524), (52, 416643), (58, 373542), (78, 277762), (87, 249028), (116, 186771), (156, 138881), (174, 124514), (348, 62257), (377, 57468), (754, 28734), (1131, 19156), (1508, 14367), (2262, 9578), (4524, 4789)]