20102159

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3677}}^1$

素因数の和:3766

約数の個数: 16

約数和(自身を含む): 25422336

約数和(自身を除く): 5320177

約数列:

[1, 7, 11, 71, 77, 497, 781, 3677, 5467, 25739, 40447, 261067, 283129, 1827469, 2871737, 20102159]

約数ペア:

[(1, 20102159), (7, 2871737), (11, 1827469), (71, 283129), (77, 261067), (497, 40447), (781, 25739), (3677, 5467)]