21281814

素因数分解:

$2^1\times 3^2\times {\mathrm{109}}^1\times {\mathrm{10847}}^1$

素因数の和:10964

約数の個数: 24

約数和(自身を含む): 46537920

約数和(自身を除く): 25256106

約数列:

[1, 2, 3, 6, 9, 18, 109, 218, 327, 654, 981, 1962, 10847, 21694, 32541, 65082, 97623, 195246, 1182323, 2364646, 3546969, 7093938, 10640907, 21281814]

約数ペア:

[(1, 21281814), (2, 10640907), (3, 7093938), (6, 3546969), (9, 2364646), (18, 1182323), (109, 195246), (218, 97623), (327, 65082), (654, 32541), (981, 21694), (1962, 10847)]