81240642

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644767}}^1$

素因数の和:644782

約数の個数: 24

約数和(自身を含む): 201167616

約数和(自身を除く): 119926974

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644767, 1289534, 1934301, 3868602, 4513369, 5802903, 9026738, 11605806, 13540107, 27080214, 40620321, 81240642]

約数ペア:

[(1, 81240642), (2, 40620321), (3, 27080214), (6, 13540107), (7, 11605806), (9, 9026738), (14, 5802903), (18, 4513369), (21, 3868602), (42, 1934301), (63, 1289534), (126, 644767)]