19837881

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16573}}^1$

素因数の和:16605

約数の個数: 24

約数和(自身を含む): 34473920

約数和(自身を除く): 14636039

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16573, 49719, 116011, 149157, 314887, 348033, 944661, 1044099, 2204209, 2833983, 6612627, 19837881]

約数ペア:

[(1, 19837881), (3, 6612627), (7, 2833983), (9, 2204209), (19, 1044099), (21, 944661), (57, 348033), (63, 314887), (133, 149157), (171, 116011), (399, 49719), (1197, 16573)]