19197619

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 23701248

約数和(自身を除く): 4503629

約数列:

[1, 7, 19, 71, 107, 133, 361, 497, 749, 1349, 2033, 2527, 7597, 9443, 14231, 25631, 38627, 53179, 144343, 179417, 270389, 1010401, 2742517, 19197619]

約数ペア:

[(1, 19197619), (7, 2742517), (19, 1010401), (71, 270389), (107, 179417), (133, 144343), (361, 53179), (497, 38627), (749, 25631), (1349, 14231), (2033, 9443), (2527, 7597)]