20869287

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1\times {\mathrm{443}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 28643328

約数和(自身を除く): 7774041

約数列:

[1, 3, 41, 123, 383, 443, 1149, 1329, 15703, 18163, 47109, 54489, 169669, 509007, 6956429, 20869287]

約数ペア:

[(1, 20869287), (3, 6956429), (41, 509007), (123, 169669), (383, 54489), (443, 47109), (1149, 18163), (1329, 15703)]