21845295

素因数分解:

$3^4\times 5^1\times {\mathrm{53939}}^1$

素因数の和:53956

約数の個数: 20

約数和(自身を含む): 39160440

約数和(自身を除く): 17315145

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 53939, 161817, 269695, 485451, 809085, 1456353, 2427255, 4369059, 7281765, 21845295]

約数ペア:

[(1, 21845295), (3, 7281765), (5, 4369059), (9, 2427255), (15, 1456353), (27, 809085), (45, 485451), (81, 269695), (135, 161817), (405, 53939)]