389640243

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{23057}}^1$

素因数の和:23234

約数の個数: 16

約数和(自身を含む): 535683456

約数和(自身を除く): 146043213

約数列:

[1, 3, 43, 129, 131, 393, 5633, 16899, 23057, 69171, 991451, 2974353, 3020467, 9061401, 129880081, 389640243]

約数ペア:

[(1, 389640243), (3, 129880081), (43, 9061401), (129, 3020467), (131, 2974353), (393, 991451), (5633, 69171), (16899, 23057)]