28267897

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{521}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 33875712

約数和(自身を除く): 5607815

約数列:

[1, 7, 23, 161, 337, 521, 2359, 3647, 7751, 11983, 54257, 83881, 175577, 1229039, 4038271, 28267897]

約数ペア:

[(1, 28267897), (7, 4038271), (23, 1229039), (161, 175577), (337, 83881), (521, 54257), (2359, 11983), (3647, 7751)]