21731049

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{821}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 33468552

約数和(自身を除く): 11737503

約数列:

[1, 3, 9, 17, 51, 153, 173, 519, 821, 1557, 2463, 2941, 7389, 8823, 13957, 26469, 41871, 125613, 142033, 426099, 1278297, 2414561, 7243683, 21731049]

約数ペア:

[(1, 21731049), (3, 7243683), (9, 2414561), (17, 1278297), (51, 426099), (153, 142033), (173, 125613), (519, 41871), (821, 26469), (1557, 13957), (2463, 8823), (2941, 7389)]