19657168

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72269}}^1$

素因数の和:72294

約数の個数: 20

約数和(自身を含む): 40326660

約数和(自身を除く): 20669492

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72269, 144538, 289076, 578152, 1156304, 1228573, 2457146, 4914292, 9828584, 19657168]

約数ペア:

[(1, 19657168), (2, 9828584), (4, 4914292), (8, 2457146), (16, 1228573), (17, 1156304), (34, 578152), (68, 289076), (136, 144538), (272, 72269)]