20809377

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3163}}^1$

素因数の和:3229

約数の個数: 24

約数和(自身を含む): 32576544

約数和(自身を除く): 11767167

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 3163, 6579, 9489, 28467, 53771, 136009, 161313, 408027, 483939, 1224081, 2312153, 6936459, 20809377]

約数ペア:

[(1, 20809377), (3, 6936459), (9, 2312153), (17, 1224081), (43, 483939), (51, 408027), (129, 161313), (153, 136009), (387, 53771), (731, 28467), (2193, 9489), (3163, 6579)]