191871113

素因数分解:

$7^4\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:694

約数の個数: 20

約数和(自身を含む): 225704580

約数和(自身を除く): 33833467

約数列:

[1, 7, 49, 157, 343, 509, 1099, 2401, 3563, 7693, 24941, 53851, 79913, 174587, 376957, 559391, 1222109, 3915737, 27410159, 191871113]

約数ペア:

[(1, 191871113), (7, 27410159), (49, 3915737), (157, 1222109), (343, 559391), (509, 376957), (1099, 174587), (2401, 79913), (3563, 53851), (7693, 24941)]