261827553

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{142841}}^1$

素因数の和:142904

約数の個数: 16

約数和(自身を含む): 383959296

約数和(自身を除く): 122131743

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 142841, 428523, 1856933, 5570799, 6713527, 20140581, 87275851, 261827553]

約数ペア:

[(1, 261827553), (3, 87275851), (13, 20140581), (39, 6713527), (47, 5570799), (141, 1856933), (611, 428523), (1833, 142841)]