20892389

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 24477696

約数和(自身を除く): 3585307

約数列:

[1, 7, 71, 127, 331, 497, 889, 2317, 9017, 23501, 42037, 63119, 164507, 294259, 2984627, 20892389]

約数ペア:

[(1, 20892389), (7, 2984627), (71, 294259), (127, 164507), (331, 63119), (497, 42037), (889, 23501), (2317, 9017)]