21288342

素因数分解:

$2^1\times 3^1\times {\mathrm{173}}^1\times {\mathrm{20509}}^1$

素因数の和:20687

約数の個数: 16

約数和(自身を含む): 42824880

約数和(自身を除く): 21536538

約数列:

[1, 2, 3, 6, 173, 346, 519, 1038, 20509, 41018, 61527, 123054, 3548057, 7096114, 10644171, 21288342]

約数ペア:

[(1, 21288342), (2, 10644171), (3, 7096114), (6, 3548057), (173, 123054), (346, 61527), (519, 41018), (1038, 20509)]