19404286

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:648

約数の個数: 24

約数和(自身を含む): 32242392

約数和(自身を除く): 12838106

約数列:

[1, 2, 11, 22, 121, 181, 242, 362, 443, 886, 1991, 3982, 4873, 9746, 21901, 43802, 53603, 80183, 107206, 160366, 882013, 1764026, 9702143, 19404286]

約数ペア:

[(1, 19404286), (2, 9702143), (11, 1764026), (22, 882013), (121, 160366), (181, 107206), (242, 80183), (362, 53603), (443, 43802), (886, 21901), (1991, 9746), (3982, 4873)]