18981963

素因数分解:

$3^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:94

約数の個数: 96

約数和(自身を含む): 38438400

約数和(自身を除く): 19456437

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 43, 49, 63, 77, 91, 99, 117, 129, 143, 147, 231, 273, 301, 343, 387, 429, 441, 473, 539, 559, 637, 693, 819, 903, 1001, 1029, 1287, 1419, 1617, 1677, 1911, 2107, 2709, 3003, 3087, 3311, 3773, 3913, 4257, 4459, 4851, 5031, 5733, 6149, 6321, 7007, 9009, 9933, 11319, 11739, 13377, 14749, 18447, 18963, 21021, 23177, 27391, 29799, 33957, 35217, 40131, 43043, 44247, 49049, 55341, 63063, 69531, 82173, 129129, 132741, 147147, 162239, 191737, 208593, 246519, 301301, 387387, 441441, 486717, 575211, 903903, 1460151, 1725633, 2109107, 2711709, 6327321, 18981963]

約数ペア:

[(1, 18981963), (3, 6327321), (7, 2711709), (9, 2109107), (11, 1725633), (13, 1460151), (21, 903903), (33, 575211), (39, 486717), (43, 441441), (49, 387387), (63, 301301), (77, 246519), (91, 208593), (99, 191737), (117, 162239), (129, 147147), (143, 132741), (147, 129129), (231, 82173), (273, 69531), (301, 63063), (343, 55341), (387, 49049), (429, 44247), (441, 43043), (473, 40131), (539, 35217), (559, 33957), (637, 29799), (693, 27391), (819, 23177), (903, 21021), (1001, 18963), (1029, 18447), (1287, 14749), (1419, 13377), (1617, 11739), (1677, 11319), (1911, 9933), (2107, 9009), (2709, 7007), (3003, 6321), (3087, 6149), (3311, 5733), (3773, 5031), (3913, 4851), (4257, 4459)]