215538165

素因数分解:

$3^4\times 5^1\times {\mathrm{532193}}^1$

素因数の和:532210

約数の個数: 20

約数和(自身を含む): 386372844

約数和(自身を除く): 170834679

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 532193, 1596579, 2660965, 4789737, 7982895, 14369211, 23948685, 43107633, 71846055, 215538165]

約数ペア:

[(1, 215538165), (3, 71846055), (5, 43107633), (9, 23948685), (15, 14369211), (27, 7982895), (45, 4789737), (81, 2660965), (135, 1596579), (405, 532193)]