28341719

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{997}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 33724416

約数和(自身を除く): 5382697

約数列:

[1, 7, 31, 131, 217, 917, 997, 4061, 6979, 28427, 30907, 130607, 216349, 914249, 4048817, 28341719]

約数ペア:

[(1, 28341719), (7, 4048817), (31, 914249), (131, 216349), (217, 130607), (917, 30907), (997, 28427), (4061, 6979)]