1980979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1979}}^1$

素因数の和:2010

約数の個数: 16

約数和(自身を含む): 2661120

約数和(自身を除く): 680141

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 1979, 13853, 21769, 25727, 152383, 180089, 282997, 1980979]

約数ペア:

[(1, 1980979), (7, 282997), (11, 180089), (13, 152383), (77, 25727), (91, 21769), (143, 13853), (1001, 1979)]