19181393

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1873}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 25636320

約数和(自身を除く): 6454927

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 1873, 10241, 13111, 20603, 35587, 91777, 144221, 249109, 391457, 1009547, 1743763, 2740199, 19181393]

約数ペア:

[(1, 19181393), (7, 2740199), (11, 1743763), (19, 1009547), (49, 391457), (77, 249109), (133, 144221), (209, 91777), (539, 35587), (931, 20603), (1463, 13111), (1873, 10241)]