28471707

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 47623680

約数和(自身を除く): 19151973

約数列:

[1, 3, 9, 11, 29, 33, 47, 87, 99, 141, 211, 261, 319, 423, 517, 633, 957, 1363, 1551, 1899, 2321, 2871, 4089, 4653, 6119, 6963, 9917, 12267, 14993, 18357, 20889, 29751, 44979, 55071, 67309, 89253, 109087, 134937, 201927, 287593, 327261, 605781, 862779, 981783, 2588337, 3163523, 9490569, 28471707]

約数ペア:

[(1, 28471707), (3, 9490569), (9, 3163523), (11, 2588337), (29, 981783), (33, 862779), (47, 605781), (87, 327261), (99, 287593), (141, 201927), (211, 134937), (261, 109087), (319, 89253), (423, 67309), (517, 55071), (633, 44979), (957, 29751), (1363, 20889), (1551, 18357), (1899, 14993), (2321, 12267), (2871, 9917), (4089, 6963), (4653, 6119)]