243365787

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{27791}}^1$

素因数の和:27943

約数の個数: 24

約数和(自身を含む): 404651520

約数和(自身を除く): 161285733

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 27791, 83373, 194537, 250119, 583611, 1750833, 3862949, 11588847, 27040643, 34766541, 81121929, 243365787]

約数ペア:

[(1, 243365787), (3, 81121929), (7, 34766541), (9, 27040643), (21, 11588847), (63, 3862949), (139, 1750833), (417, 583611), (973, 250119), (1251, 194537), (2919, 83373), (8757, 27791)]