19880194

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{9871}}^1$

素因数の和:9945

約数の個数: 16

約数和(自身を含む): 31985280

約数和(自身を除く): 12105086

約数列:

[1, 2, 19, 38, 53, 106, 1007, 2014, 9871, 19742, 187549, 375098, 523163, 1046326, 9940097, 19880194]

約数ペア:

[(1, 19880194), (2, 9940097), (19, 1046326), (38, 523163), (53, 375098), (106, 187549), (1007, 19742), (2014, 9871)]