18784683

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10245717

約数列:

[1, 3, 9, 27, 41, 71, 123, 213, 239, 369, 639, 717, 1107, 1917, 2151, 2911, 6453, 8733, 9799, 16969, 26199, 29397, 50907, 78597, 88191, 152721, 264573, 458163, 695729, 2087187, 6261561, 18784683]

約数ペア:

[(1, 18784683), (3, 6261561), (9, 2087187), (27, 695729), (41, 458163), (71, 264573), (123, 152721), (213, 88191), (239, 78597), (369, 50907), (639, 29397), (717, 26199), (1107, 16969), (1917, 9799), (2151, 8733), (2911, 6453)]