20780051881

素因数分解:

${\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1\times {\mathrm{53441}}^1$

素因数の和:53804

約数の個数: 16

約数和(自身を含む): 22336618320

約数和(自身を除く): 1556566439

約数列:

[1, 17, 89, 257, 1513, 4369, 22873, 53441, 388841, 908497, 4756249, 13734337, 80856233, 233483729, 1222355993, 20780051881]

約数ペア:

[(1, 20780051881), (17, 1222355993), (89, 233483729), (257, 80856233), (1513, 13734337), (4369, 4756249), (22873, 908497), (53441, 388841)]