19534879

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{337}}^1$

素因数の和:384

約数の個数: 24

約数和(自身を含む): 24741600

約数和(自身を除く): 5206721

約数列:

[1, 7, 13, 49, 91, 169, 337, 343, 637, 1183, 2359, 4381, 4459, 8281, 16513, 30667, 56953, 57967, 115591, 214669, 398671, 1502683, 2790697, 19534879]

約数ペア:

[(1, 19534879), (7, 2790697), (13, 1502683), (49, 398671), (91, 214669), (169, 115591), (337, 57967), (343, 56953), (637, 30667), (1183, 16513), (2359, 8281), (4381, 4459)]