2657221

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:209

約数の個数: 16

約数和(自身を含む): 3174400

約数和(自身を除く): 517179

約数列:

[1, 7, 49, 61, 127, 343, 427, 889, 2989, 6223, 7747, 20923, 43561, 54229, 379603, 2657221]

約数ペア:

[(1, 2657221), (7, 379603), (49, 54229), (61, 43561), (127, 20923), (343, 7747), (427, 6223), (889, 2989)]