19950205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11701}}^1$

素因数の和:11748

約数の個数: 16

約数和(自身を含む): 26961408

約数和(自身を除く): 7011203

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11701, 58505, 128711, 362731, 643555, 1813655, 3990041, 19950205]

約数ペア:

[(1, 19950205), (5, 3990041), (11, 1813655), (31, 643555), (55, 362731), (155, 128711), (341, 58505), (1705, 11701)]