15551975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1187

約数の個数: 24

約数和(自身を含む): 21018000

約数和(自身を除く): 5466025

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1129, 2755, 5645, 13775, 21451, 28225, 32741, 107255, 163705, 536275, 622079, 818525, 3110395, 15551975]

約数ペア:

[(1, 15551975), (5, 3110395), (19, 818525), (25, 622079), (29, 536275), (95, 163705), (145, 107255), (475, 32741), (551, 28225), (725, 21451), (1129, 13775), (2755, 5645)]