21036807

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:580

約数の個数: 32

約数和(自身を含む): 34268160

約数和(自身を除く): 13231353

約数列:

[1, 3, 9, 11, 27, 33, 99, 193, 297, 367, 579, 1101, 1737, 2123, 3303, 4037, 5211, 6369, 9909, 12111, 19107, 36333, 57321, 70831, 108999, 212493, 637479, 779141, 1912437, 2337423, 7012269, 21036807]

約数ペア:

[(1, 21036807), (3, 7012269), (9, 2337423), (11, 1912437), (27, 779141), (33, 637479), (99, 212493), (193, 108999), (297, 70831), (367, 57321), (579, 36333), (1101, 19107), (1737, 12111), (2123, 9909), (3303, 6369), (4037, 5211)]