18895825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1097}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 25732728

約数和(自身を除く): 6836903

約数列:

[1, 5, 13, 25, 53, 65, 265, 325, 689, 1097, 1325, 3445, 5485, 14261, 17225, 27425, 58141, 71305, 290705, 356525, 755833, 1453525, 3779165, 18895825]

約数ペア:

[(1, 18895825), (5, 3779165), (13, 1453525), (25, 755833), (53, 356525), (65, 290705), (265, 71305), (325, 58141), (689, 27425), (1097, 17225), (1325, 14261), (3445, 5485)]