19910588121

素因数分解:

$3^2\times {\mathrm{509}}^1\times {\mathrm{4346341}}^1$

素因数の和:4346856

約数の個数: 12

約数和(自身を含む): 28816247460

約数和(自身を除く): 8905659339

約数列:

[1, 3, 9, 509, 1527, 4581, 4346341, 13039023, 39117069, 2212287569, 6636862707, 19910588121]

約数ペア:

[(1, 19910588121), (3, 6636862707), (9, 2212287569), (509, 39117069), (1527, 13039023), (4581, 4346341)]