20315787

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{499}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 27888000

約数和(自身を除く): 7572213

約数列:

[1, 3, 41, 123, 331, 499, 993, 1497, 13571, 20459, 40713, 61377, 165169, 495507, 6771929, 20315787]

約数ペア:

[(1, 20315787), (3, 6771929), (41, 495507), (123, 165169), (331, 61377), (499, 40713), (993, 20459), (1497, 13571)]