42780478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{9511}}^1$

素因数の和:9699

約数の個数: 16

約数和(自身を含む): 69513696

約数和(自身を除く): 26733218

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4498, 9511, 19022, 123643, 247286, 1645403, 3290806, 21390239, 42780478]

約数ペア:

[(1, 42780478), (2, 21390239), (13, 3290806), (26, 1645403), (173, 247286), (346, 123643), (2249, 19022), (4498, 9511)]