19398918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 48844800

約数和(自身を除く): 29445882

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 199, 211, 231, 398, 422, 462, 597, 633, 1194, 1266, 1393, 1477, 2189, 2321, 2786, 2954, 4179, 4378, 4431, 4642, 6567, 6963, 8358, 8862, 13134, 13926, 15323, 16247, 30646, 32494, 41989, 45969, 48741, 83978, 91938, 97482, 125967, 251934, 293923, 461879, 587846, 881769, 923758, 1385637, 1763538, 2771274, 3233153, 6466306, 9699459, 19398918]

約数ペア:

[(1, 19398918), (2, 9699459), (3, 6466306), (6, 3233153), (7, 2771274), (11, 1763538), (14, 1385637), (21, 923758), (22, 881769), (33, 587846), (42, 461879), (66, 293923), (77, 251934), (154, 125967), (199, 97482), (211, 91938), (231, 83978), (398, 48741), (422, 45969), (462, 41989), (597, 32494), (633, 30646), (1194, 16247), (1266, 15323), (1393, 13926), (1477, 13134), (2189, 8862), (2321, 8358), (2786, 6963), (2954, 6567), (4179, 4642), (4378, 4431)]