18216819

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{941}}^1$

素因数の和:1192

約数の個数: 20

約数和(自身を含む): 27355680

約数和(自身を除く): 9138861

約数列:

[1, 3, 9, 27, 81, 239, 717, 941, 2151, 2823, 6453, 8469, 19359, 25407, 76221, 224899, 674697, 2024091, 6072273, 18216819]

約数ペア:

[(1, 18216819), (3, 6072273), (9, 2024091), (27, 674697), (81, 224899), (239, 76221), (717, 25407), (941, 19359), (2151, 8469), (2823, 6453)]