28388521

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1249}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 34560000

約数和(自身を除く): 6171479

約数列:

[1, 7, 17, 119, 191, 1249, 1337, 3247, 8743, 21233, 22729, 148631, 238559, 1669913, 4055503, 28388521]

約数ペア:

[(1, 28388521), (7, 4055503), (17, 1669913), (119, 238559), (191, 148631), (1249, 22729), (1337, 21233), (3247, 8743)]