21618448

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10639}}^1$

素因数の和:10774

約数の個数: 20

約数和(自身を含む): 42219520

約数和(自身を除く): 20601072

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10639, 21278, 42556, 85112, 170224, 1351153, 2702306, 5404612, 10809224, 21618448]

約数ペア:

[(1, 21618448), (2, 10809224), (4, 5404612), (8, 2702306), (16, 1351153), (127, 170224), (254, 85112), (508, 42556), (1016, 21278), (2032, 10639)]