28426391

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 33355584

約数和(自身を除く): 4929193

約数列:

[1, 7, 53, 193, 371, 397, 1351, 2779, 10229, 21041, 71603, 76621, 147287, 536347, 4060913, 28426391]

約数ペア:

[(1, 28426391), (7, 4060913), (53, 536347), (193, 147287), (371, 76621), (397, 71603), (1351, 21041), (2779, 10229)]