21435759

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{5189}}^1$

素因数の和:5221

約数の個数: 24

約数和(自身を含む): 34004880

約数和(自身を除く): 12569121

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 5189, 15567, 46701, 88213, 140103, 264639, 420309, 793917, 1260927, 2381751, 7145253, 21435759]

約数ペア:

[(1, 21435759), (3, 7145253), (9, 2381751), (17, 1260927), (27, 793917), (51, 420309), (81, 264639), (153, 140103), (243, 88213), (459, 46701), (1377, 15567), (4131, 5189)]