16681707

素因数分解:

$3^6\times 7^2\times {\mathrm{467}}^1$

素因数の和:499

約数の個数: 42

約数和(自身を含む): 29156868

約数和(自身を除く): 12475161

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 467, 567, 729, 1323, 1401, 1701, 3269, 3969, 4203, 5103, 9807, 11907, 12609, 22883, 29421, 35721, 37827, 68649, 88263, 113481, 205947, 264789, 340443, 617841, 794367, 1853523, 2383101, 5560569, 16681707]

約数ペア:

[(1, 16681707), (3, 5560569), (7, 2383101), (9, 1853523), (21, 794367), (27, 617841), (49, 340443), (63, 264789), (81, 205947), (147, 113481), (189, 88263), (243, 68649), (441, 37827), (467, 35721), (567, 29421), (729, 22883), (1323, 12609), (1401, 11907), (1701, 9807), (3269, 5103), (3969, 4203)]