18221392

素因数分解:

$2^4\times 7^1\times {\mathrm{162691}}^1$

素因数の和:162706

約数の個数: 20

約数和(自身を含む): 40347616

約数和(自身を除く): 22126224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 162691, 325382, 650764, 1138837, 1301528, 2277674, 2603056, 4555348, 9110696, 18221392]

約数ペア:

[(1, 18221392), (2, 9110696), (4, 4555348), (7, 2603056), (8, 2277674), (14, 1301528), (16, 1138837), (28, 650764), (56, 325382), (112, 162691)]