21023894

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{443}}^1$

素因数の和:895

約数の個数: 16

約数和(自身を含む): 32207760

約数和(自身を除く): 11183866

約数列:

[1, 2, 61, 122, 389, 443, 778, 886, 23729, 27023, 47458, 54046, 172327, 344654, 10511947, 21023894]

約数ペア:

[(1, 21023894), (2, 10511947), (61, 344654), (122, 172327), (389, 54046), (443, 47458), (778, 27023), (886, 23729)]