19963665

素因数分解:

$3^6\times 5^1\times {\mathrm{5477}}^1$

素因数の和:5500

約数の個数: 28

約数和(自身を含む): 35924724

約数和(自身を除く): 15961059

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5477, 16431, 27385, 49293, 82155, 147879, 246465, 443637, 739395, 1330911, 2218185, 3992733, 6654555, 19963665]

約数ペア:

[(1, 19963665), (3, 6654555), (5, 3992733), (9, 2218185), (15, 1330911), (27, 739395), (45, 443637), (81, 246465), (135, 147879), (243, 82155), (405, 49293), (729, 27385), (1215, 16431), (3645, 5477)]