21854571

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{2477}}^1$

素因数の和:2670

約数の個数: 16

約数和(自身を含む): 31044384

約数和(自身を除く): 9189813

約数列:

[1, 3, 17, 51, 173, 519, 2477, 2941, 7431, 8823, 42109, 126327, 428521, 1285563, 7284857, 21854571]

約数ペア:

[(1, 21854571), (3, 7284857), (17, 1285563), (51, 428521), (173, 126327), (519, 42109), (2477, 8823), (2941, 7431)]