81122209

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{1489}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 95455360

約数和(自身を除く): 14333151

約数列:

[1, 7, 43, 181, 301, 1267, 1489, 7783, 10423, 54481, 64027, 269509, 448189, 1886563, 11588887, 81122209]

約数ペア:

[(1, 81122209), (7, 11588887), (43, 1886563), (181, 448189), (301, 269509), (1267, 64027), (1489, 54481), (7783, 10423)]