15660988

素因数分解:

$2^2\times 7^2\times {\mathrm{79903}}^1$

素因数の和:79921

約数の個数: 18

約数和(自身を含む): 31881696

約数和(自身を除く): 16220708

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 79903, 159806, 319612, 559321, 1118642, 2237284, 3915247, 7830494, 15660988]

約数ペア:

[(1, 15660988), (2, 7830494), (4, 3915247), (7, 2237284), (14, 1118642), (28, 559321), (49, 319612), (98, 159806), (196, 79903)]