18955899

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1093}}^1$

素因数の和:1187

約数の個数: 24

約数和(自身を含む): 28671552

約数和(自身を除く): 9715653

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1093, 1927, 3279, 5781, 9837, 17343, 44813, 51371, 134439, 154113, 403317, 462339, 2106211, 6318633, 18955899]

約数ペア:

[(1, 18955899), (3, 6318633), (9, 2106211), (41, 462339), (47, 403317), (123, 154113), (141, 134439), (369, 51371), (423, 44813), (1093, 17343), (1927, 9837), (3279, 5781)]