21113439

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{2393}}^1$

素因数の和:2586

約数の個数: 16

約数和(自身を含む): 29992032

約数和(自身を除く): 8878593

約数列:

[1, 3, 17, 51, 173, 519, 2393, 2941, 7179, 8823, 40681, 122043, 413989, 1241967, 7037813, 21113439]

約数ペア:

[(1, 21113439), (3, 7037813), (17, 1241967), (51, 413989), (173, 122043), (519, 40681), (2393, 8823), (2941, 7179)]