20167581

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7331}}^1$

素因数の和:7472

約数の個数: 16

約数和(自身を含む): 30970368

約数和(自身を除く): 10802787

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7331, 21993, 51317, 153951, 960361, 2881083, 6722527, 20167581]

約数ペア:

[(1, 20167581), (3, 6722527), (7, 2881083), (21, 960361), (131, 153951), (393, 51317), (917, 21993), (2751, 7331)]