20790693

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1622

約数の個数: 48

約数和(自身を含む): 39436800

約数和(自身を除く): 18646107

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1579, 1881, 4389, 4737, 11053, 13167, 14211, 17369, 30001, 33159, 52107, 90003, 99477, 121583, 156321, 210007, 270009, 330011, 364749, 630021, 990033, 1094247, 1890063, 2310077, 2970099, 6930231, 20790693]

約数ペア:

[(1, 20790693), (3, 6930231), (7, 2970099), (9, 2310077), (11, 1890063), (19, 1094247), (21, 990033), (33, 630021), (57, 364749), (63, 330011), (77, 270009), (99, 210007), (133, 156321), (171, 121583), (209, 99477), (231, 90003), (399, 52107), (627, 33159), (693, 30001), (1197, 17369), (1463, 14211), (1579, 13167), (1881, 11053), (4389, 4737)]