18319768

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{43207}}^1$

素因数の和:43266

約数の個数: 16

約数和(自身を含む): 34998480

約数和(自身を除く): 16678712

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 43207, 86414, 172828, 345656, 2289971, 4579942, 9159884, 18319768]

約数ペア:

[(1, 18319768), (2, 9159884), (4, 4579942), (8, 2289971), (53, 345656), (106, 172828), (212, 86414), (424, 43207)]