19939953

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:525

約数の個数: 24

約数和(自身を含む): 29489824

約数和(自身を除く): 9549871

約数列:

[1, 3, 11, 33, 121, 163, 337, 363, 489, 1011, 1793, 3707, 5379, 11121, 19723, 40777, 54931, 59169, 122331, 164793, 604241, 1812723, 6646651, 19939953]

約数ペア:

[(1, 19939953), (3, 6646651), (11, 1812723), (33, 604241), (121, 164793), (163, 122331), (337, 59169), (363, 54931), (489, 40777), (1011, 19723), (1793, 11121), (3707, 5379)]