19387389

素因数分解:

$3^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 11255811

約数列:

[1, 3, 7, 21, 49, 83, 147, 227, 249, 343, 581, 681, 1029, 1589, 1743, 4067, 4767, 11123, 12201, 18841, 28469, 33369, 56523, 77861, 85407, 131887, 233583, 395661, 923209, 2769627, 6462463, 19387389]

約数ペア:

[(1, 19387389), (3, 6462463), (7, 2769627), (21, 923209), (49, 395661), (83, 233583), (147, 131887), (227, 85407), (249, 77861), (343, 56523), (581, 33369), (681, 28469), (1029, 18841), (1589, 12201), (1743, 11123), (4067, 4767)]