18129881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1361}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 22750848

約数和(自身を除く): 4620967

約数列:

[1, 7, 11, 77, 173, 1211, 1361, 1903, 9527, 13321, 14971, 104797, 235453, 1648171, 2589983, 18129881]

約数ペア:

[(1, 18129881), (7, 2589983), (11, 1648171), (77, 235453), (173, 104797), (1211, 14971), (1361, 13321), (1903, 9527)]