199163979

素因数分解:

$3^2\times 7^3\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 338520000

約数和(自身を除く): 139356021

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 149, 343, 433, 441, 447, 1029, 1043, 1299, 1341, 3031, 3087, 3129, 3897, 7301, 9093, 9387, 21217, 21903, 27279, 51107, 63651, 64517, 65709, 148519, 153321, 190953, 193551, 445557, 451619, 459963, 580653, 1336671, 1354857, 3161333, 4064571, 9483999, 22129331, 28451997, 66387993, 199163979]

約数ペア:

[(1, 199163979), (3, 66387993), (7, 28451997), (9, 22129331), (21, 9483999), (49, 4064571), (63, 3161333), (147, 1354857), (149, 1336671), (343, 580653), (433, 459963), (441, 451619), (447, 445557), (1029, 193551), (1043, 190953), (1299, 153321), (1341, 148519), (3031, 65709), (3087, 64517), (3129, 63651), (3897, 51107), (7301, 27279), (9093, 21903), (9387, 21217)]