56997969

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{20719}}^1$

素因数の和:20860

約数の個数: 16

約数和(自身を含む): 87521280

約数和(自身を除く): 30523311

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 20719, 62157, 145033, 435099, 2714189, 8142567, 18999323, 56997969]

約数ペア:

[(1, 56997969), (3, 18999323), (7, 8142567), (21, 2714189), (131, 435099), (393, 145033), (917, 62157), (2751, 20719)]