80945721

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{31121}}^1$

素因数の和:31161

約数の個数: 18

約数和(自身を含む): 124207902

約数和(自身を除く): 43262181

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 31121, 93363, 280089, 529057, 1587171, 4761513, 8993969, 26981907, 80945721]

約数ペア:

[(1, 80945721), (3, 26981907), (9, 8993969), (17, 4761513), (51, 1587171), (153, 529057), (289, 280089), (867, 93363), (2601, 31121)]