18818456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{138371}}^1$

素因数の和:138394

約数の個数: 16

約数和(自身を含む): 37360440

約数和(自身を除く): 18541984

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 138371, 276742, 553484, 1106968, 2352307, 4704614, 9409228, 18818456]

約数ペア:

[(1, 18818456), (2, 9409228), (4, 4704614), (8, 2352307), (17, 1106968), (34, 553484), (68, 276742), (136, 138371)]