138235426

素因数分解:

$2^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{21991}}^1$

素因数の和:22449

約数の個数: 16

約数和(自身を含む): 237513600

約数和(自身を除く): 99278174

約数列:

[1, 2, 7, 14, 449, 898, 3143, 6286, 21991, 43982, 153937, 307874, 9873959, 19747918, 69117713, 138235426]

約数ペア:

[(1, 138235426), (2, 69117713), (7, 19747918), (14, 9873959), (449, 307874), (898, 153937), (3143, 43982), (6286, 21991)]