20746803

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 37785600

約数和(自身を除く): 17038797

約数列:

[1, 3, 7, 11, 19, 21, 29, 33, 57, 77, 87, 133, 163, 203, 209, 231, 319, 399, 489, 551, 609, 627, 957, 1141, 1463, 1653, 1793, 2233, 3097, 3423, 3857, 4389, 4727, 5379, 6061, 6699, 9291, 11571, 12551, 14181, 18183, 21679, 33089, 34067, 37653, 42427, 51997, 65037, 89813, 99267, 102201, 127281, 155991, 238469, 269439, 363979, 628691, 715407, 987943, 1091937, 1886073, 2963829, 6915601, 20746803]

約数ペア:

[(1, 20746803), (3, 6915601), (7, 2963829), (11, 1886073), (19, 1091937), (21, 987943), (29, 715407), (33, 628691), (57, 363979), (77, 269439), (87, 238469), (133, 155991), (163, 127281), (203, 102201), (209, 99267), (231, 89813), (319, 65037), (399, 51997), (489, 42427), (551, 37653), (609, 34067), (627, 33089), (957, 21679), (1141, 18183), (1463, 14181), (1653, 12551), (1793, 11571), (2233, 9291), (3097, 6699), (3423, 6061), (3857, 5379), (4389, 4727)]