21811365315

素因数分解:

$3^5\times 5^1\times {\mathrm{17951741}}^1$

素因数の和:17951761

約数の個数: 24

約数和(自身を含む): 39206604528

約数和(自身を除く): 17395239213

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17951741, 53855223, 89758705, 161565669, 269276115, 484697007, 807828345, 1454091021, 2423485035, 4362273063, 7270455105, 21811365315]

約数ペア:

[(1, 21811365315), (3, 7270455105), (5, 4362273063), (9, 2423485035), (15, 1454091021), (27, 807828345), (45, 484697007), (81, 269276115), (135, 161565669), (243, 89758705), (405, 53855223), (1215, 17951741)]