289789423

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{28729}}^1$

素因数の和:28878

約数の個数: 16

約数和(自身を含む): 364066560

約数和(自身を除く): 74277137

約数列:

[1, 7, 11, 77, 131, 917, 1441, 10087, 28729, 201103, 316019, 2212133, 3763499, 26344493, 41398489, 289789423]

約数ペア:

[(1, 289789423), (7, 41398489), (11, 26344493), (77, 3763499), (131, 2212133), (917, 316019), (1441, 201103), (10087, 28729)]