20288530881

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7800281}}^1$

素因数の和:7800321

約数の個数: 18

約数和(自身を含む): 31130925462

約数和(自身を除く): 10842394581

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7800281, 23400843, 70202529, 132604777, 397814331, 1193442993, 2254281209, 6762843627, 20288530881]

約数ペア:

[(1, 20288530881), (3, 6762843627), (9, 2254281209), (17, 1193442993), (51, 397814331), (153, 132604777), (289, 70202529), (867, 23400843), (2601, 7800281)]