27939401

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:884

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 5238199

約数列:

[1, 7, 31, 199, 217, 647, 1393, 4529, 6169, 20057, 43183, 128753, 140399, 901271, 3991343, 27939401]

約数ペア:

[(1, 27939401), (7, 3991343), (31, 901271), (199, 140399), (217, 128753), (647, 43183), (1393, 20057), (4529, 6169)]