19517769

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{727}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 29906240

約数和(自身を除く): 10388471

約数列:

[1, 3, 9, 19, 57, 157, 171, 471, 727, 1413, 2181, 2983, 6543, 8949, 13813, 26847, 41439, 114139, 124317, 342417, 1027251, 2168641, 6505923, 19517769]

約数ペア:

[(1, 19517769), (3, 6505923), (9, 2168641), (19, 1027251), (57, 342417), (157, 124317), (171, 114139), (471, 41439), (727, 26847), (1413, 13813), (2181, 8949), (2983, 6543)]