18986213379

素因数分解:

$3^1\times 7^1\times {\mathrm{1579}}^1\times {\mathrm{572581}}^1$

素因数の和:574170

約数の個数: 16

約数和(自身を含む): 28949745920

約数和(自身を除く): 9963532541

約数列:

[1, 3, 7, 21, 1579, 4737, 11053, 33159, 572581, 1717743, 4008067, 12024201, 904105399, 2712316197, 6328737793, 18986213379]

約数ペア:

[(1, 18986213379), (3, 6328737793), (7, 2712316197), (21, 904105399), (1579, 12024201), (4737, 4008067), (11053, 1717743), (33159, 572581)]