2021029981

素因数分解:

${\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2719}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 2238451200

約数和(自身を除く): 217421219

約数列:

[1, 19, 29, 71, 361, 551, 1349, 2059, 2719, 10469, 25631, 39121, 51661, 78851, 193049, 743299, 981559, 1498169, 3667931, 5598421, 28465211, 69690689, 106369999, 2021029981]

約数ペア:

[(1, 2021029981), (19, 106369999), (29, 69690689), (71, 28465211), (361, 5598421), (551, 3667931), (1349, 1498169), (2059, 981559), (2719, 743299), (10469, 193049), (25631, 78851), (39121, 51661)]