18769738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2\times {\mathrm{257}}^1$

素因数の和:378

約数の個数: 24

約数和(自身を含む): 31023468

約数和(自身を除く): 12253730

約数列:

[1, 2, 13, 26, 53, 106, 257, 514, 689, 1378, 2809, 3341, 5618, 6682, 13621, 27242, 36517, 73034, 177073, 354146, 721913, 1443826, 9384869, 18769738]

約数ペア:

[(1, 18769738), (2, 9384869), (13, 1443826), (26, 721913), (53, 354146), (106, 177073), (257, 73034), (514, 36517), (689, 27242), (1378, 13621), (2809, 6682), (3341, 5618)]