121991454145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{31239809}}^1$

素因数の和:31239896

約数の個数: 16

約数和(自身を含む): 161947175040

約数和(自身を除く): 39955720895

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 31239809, 156199045, 343637899, 1718189495, 2218026439, 11090132195, 24398290829, 121991454145]

約数ペア:

[(1, 121991454145), (5, 24398290829), (11, 11090132195), (55, 2218026439), (71, 1718189495), (355, 343637899), (781, 156199045), (3905, 31239809)]