21063969

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{5099}}^1$

素因数の和:5131

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 12351231

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 5099, 15297, 45891, 86683, 137673, 260049, 413019, 780147, 1239057, 2340441, 7021323, 21063969]

約数ペア:

[(1, 21063969), (3, 7021323), (9, 2340441), (17, 1239057), (27, 780147), (51, 413019), (81, 260049), (153, 137673), (243, 86683), (459, 45891), (1377, 15297), (4131, 5099)]