18240299

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 23715648

約数和(自身を除く): 5475349

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 787, 2107, 3311, 5509, 8657, 23177, 33841, 38563, 60599, 236887, 372251, 424193, 1658209, 2605757, 18240299]

約数ペア:

[(1, 18240299), (7, 2605757), (11, 1658209), (43, 424193), (49, 372251), (77, 236887), (301, 60599), (473, 38563), (539, 33841), (787, 23177), (2107, 8657), (3311, 5509)]