2893643991

素因数分解:

$3^2\times 7^2\times {\mathrm{6561551}}^1$

素因数の和:6561571

約数の個数: 18

約数和(自身を含む): 4862110032

約数和(自身を除く): 1968466041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 6561551, 19684653, 45930857, 59053959, 137792571, 321515999, 413377713, 964547997, 2893643991]

約数ペア:

[(1, 2893643991), (3, 964547997), (7, 413377713), (9, 321515999), (21, 137792571), (49, 59053959), (63, 45930857), (147, 19684653), (441, 6561551)]