20501811

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 34500960

約数和(自身を除く): 13999149

約数列:

[1, 3, 9, 11, 29, 33, 37, 87, 99, 111, 193, 261, 319, 333, 407, 579, 957, 1073, 1221, 1737, 2123, 2871, 3219, 3663, 5597, 6369, 7141, 9657, 11803, 16791, 19107, 21423, 35409, 50373, 61567, 64269, 78551, 106227, 184701, 207089, 235653, 554103, 621267, 706959, 1863801, 2277979, 6833937, 20501811]

約数ペア:

[(1, 20501811), (3, 6833937), (9, 2277979), (11, 1863801), (29, 706959), (33, 621267), (37, 554103), (87, 235653), (99, 207089), (111, 184701), (193, 106227), (261, 78551), (319, 64269), (333, 61567), (407, 50373), (579, 35409), (957, 21423), (1073, 19107), (1221, 16791), (1737, 11803), (2123, 9657), (2871, 7141), (3219, 6369), (3663, 5597)]