19681235

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1987}}^1$

素因数の和:2282

約数の個数: 16

約数和(自身を含む): 27100416

約数和(自身を除く): 7419181

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 1987, 9905, 9935, 13909, 69545, 562321, 2811605, 3936247, 19681235]

約数ペア:

[(1, 19681235), (5, 3936247), (7, 2811605), (35, 562321), (283, 69545), (1415, 13909), (1981, 9935), (1987, 9905)]