81481547

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{4219}}^1$

素因数の和:4346

約数の個数: 16

約数和(自身を含む): 97228800

約数和(自身を除く): 15747253

約数列:

[1, 7, 31, 89, 217, 623, 2759, 4219, 19313, 29533, 130789, 375491, 915523, 2628437, 11640221, 81481547]

約数ペア:

[(1, 81481547), (7, 11640221), (31, 2628437), (89, 915523), (217, 375491), (623, 130789), (2759, 29533), (4219, 19313)]