261079

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:190

約数の個数: 16

約数和(自身を含む): 340480

約数和(自身を除く): 79401

約数列:

[1, 7, 13, 19, 91, 133, 151, 247, 1057, 1729, 1963, 2869, 13741, 20083, 37297, 261079]

約数ペア:

[(1, 261079), (7, 37297), (13, 20083), (19, 13741), (91, 2869), (133, 1963), (151, 1729), (247, 1057)]