1640152719

素因数分解:

$3^4\times {\mathrm{307}}^1\times {\mathrm{65957}}^1$

素因数の和:66276

約数の個数: 20

約数和(自身を含む): 2458122744

約数和(自身を除く): 817970025

約数列:

[1, 3, 9, 27, 81, 307, 921, 2763, 8289, 24867, 65957, 197871, 593613, 1780839, 5342517, 20248799, 60746397, 182239191, 546717573, 1640152719]

約数ペア:

[(1, 1640152719), (3, 546717573), (9, 182239191), (27, 60746397), (81, 20248799), (307, 5342517), (921, 1780839), (2763, 593613), (8289, 197871), (24867, 65957)]