19887184

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{9787}}^1$

素因数の和:9922

約数の個数: 20

約数和(自身を含む): 38838784

約数和(自身を除く): 18951600

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 9787, 19574, 39148, 78296, 156592, 1242949, 2485898, 4971796, 9943592, 19887184]

約数ペア:

[(1, 19887184), (2, 9943592), (4, 4971796), (8, 2485898), (16, 1242949), (127, 156592), (254, 78296), (508, 39148), (1016, 19574), (2032, 9787)]