397171431

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{132523}}^1$

素因数の和:132572

約数の個数: 20

約数和(自身を含む): 609345352

約数和(自身を除く): 212173921

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 132523, 397569, 1192707, 3578121, 4903351, 10734363, 14710053, 44130159, 132390477, 397171431]

約数ペア:

[(1, 397171431), (3, 132390477), (9, 44130159), (27, 14710053), (37, 10734363), (81, 4903351), (111, 3578121), (333, 1192707), (999, 397569), (2997, 132523)]