20816343

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 32689800

約数和(自身を除く): 11873457

約数列:

[1, 3, 9, 19, 43, 57, 129, 149, 171, 361, 387, 447, 817, 1083, 1341, 2451, 2831, 3249, 6407, 7353, 8493, 15523, 19221, 25479, 46569, 53789, 57663, 121733, 139707, 161367, 365199, 484101, 1095597, 2312927, 6938781, 20816343]

約数ペア:

[(1, 20816343), (3, 6938781), (9, 2312927), (19, 1095597), (43, 484101), (57, 365199), (129, 161367), (149, 139707), (171, 121733), (361, 57663), (387, 53789), (447, 46569), (817, 25479), (1083, 19221), (1341, 15523), (2451, 8493), (2831, 7353), (3249, 6407)]