18980951249

素因数分解:

${\mathrm{13}}^2\times {\mathrm{439}}^1\times {\mathrm{255839}}^1$

素因数の和:256304

約数の個数: 12

約数和(自身を含む): 20600236800

約数和(自身を除く): 1619285551

約数列:

[1, 13, 169, 439, 5707, 74191, 255839, 3325907, 43236791, 112313321, 1460073173, 18980951249]

約数ペア:

[(1, 18980951249), (13, 1460073173), (169, 112313321), (439, 43236791), (5707, 3325907), (74191, 255839)]