21108513

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{877}}^1$

素因数の和:1064

約数の個数: 16

約数和(自身を含む): 28826496

約数和(自身を除く): 7717983

約数列:

[1, 3, 71, 113, 213, 339, 877, 2631, 8023, 24069, 62267, 99101, 186801, 297303, 7036171, 21108513]

約数ペア:

[(1, 21108513), (3, 7036171), (71, 297303), (113, 186801), (213, 99101), (339, 62267), (877, 24069), (2631, 8023)]