18458937

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2203}}^1$

素因数の和:2242

約数の個数: 36

約数和(自身を含む): 32663280

約数和(自身を除く): 14204343

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2203, 2793, 6609, 8379, 15421, 19827, 41857, 46263, 107947, 125571, 138789, 292999, 323841, 376713, 878997, 971523, 2050993, 2636991, 6152979, 18458937]

約数ペア:

[(1, 18458937), (3, 6152979), (7, 2636991), (9, 2050993), (19, 971523), (21, 878997), (49, 376713), (57, 323841), (63, 292999), (133, 138789), (147, 125571), (171, 107947), (399, 46263), (441, 41857), (931, 19827), (1197, 15421), (2203, 8379), (2793, 6609)]