20730957

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 31758720

約数和(自身を除く): 11027763

約数列:

[1, 3, 13, 19, 39, 57, 101, 247, 277, 303, 741, 831, 1313, 1919, 3601, 3939, 5263, 5757, 10803, 15789, 24947, 27977, 68419, 74841, 83931, 205257, 363701, 531563, 1091103, 1594689, 6910319, 20730957]

約数ペア:

[(1, 20730957), (3, 6910319), (13, 1594689), (19, 1091103), (39, 531563), (57, 363701), (101, 205257), (247, 83931), (277, 74841), (303, 68419), (741, 27977), (831, 24947), (1313, 15789), (1919, 10803), (3601, 5757), (3939, 5263)]