20967579

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{15227}}^1$

素因数の和:15256

約数の個数: 20

約数和(自身を含む): 33166584

約数和(自身を除く): 12199005

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 15227, 45681, 137043, 258859, 411129, 776577, 1233387, 2329731, 6989193, 20967579]

約数ペア:

[(1, 20967579), (3, 6989193), (9, 2329731), (17, 1233387), (27, 776577), (51, 411129), (81, 258859), (153, 137043), (459, 45681), (1377, 15227)]