28818181

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 33634944

約数和(自身を除く): 4816763

約数列:

[1, 7, 83, 193, 257, 581, 1351, 1799, 16019, 21331, 49601, 112133, 149317, 347207, 4116883, 28818181]

約数ペア:

[(1, 28818181), (7, 4116883), (83, 347207), (193, 149317), (257, 112133), (581, 49601), (1351, 21331), (1799, 16019)]