81656491

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1607}}^1$

素因数の和:1699

約数の個数: 24

約数和(自身を含む): 102288096

約数和(自身を除く): 20631605

約数列:

[1, 7, 17, 49, 61, 119, 427, 833, 1037, 1607, 2989, 7259, 11249, 27319, 50813, 78743, 98027, 191233, 686189, 1338631, 1666459, 4803323, 11665213, 81656491]

約数ペア:

[(1, 81656491), (7, 11665213), (17, 4803323), (49, 1666459), (61, 1338631), (119, 686189), (427, 191233), (833, 98027), (1037, 78743), (1607, 50813), (2989, 27319), (7259, 11249)]