2155139

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 16

約数和(自身を含む): 2593728

約数和(自身を除く): 438589

約数列:

[1, 7, 37, 53, 157, 259, 371, 1099, 1961, 5809, 8321, 13727, 40663, 58247, 307877, 2155139]

約数ペア:

[(1, 2155139), (7, 307877), (37, 58247), (53, 40663), (157, 13727), (259, 8321), (371, 5809), (1099, 1961)]