7867881

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 14318400

約数和(自身を除く): 6450519

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 313, 399, 441, 513, 931, 939, 1197, 1323, 2191, 2793, 2817, 3591, 5947, 6573, 8379, 8451, 15337, 17841, 19719, 25137, 41629, 46011, 53523, 59157, 124887, 138033, 160569, 291403, 374661, 414099, 874209, 1123983, 2622627, 7867881]

約数ペア:

[(1, 7867881), (3, 2622627), (7, 1123983), (9, 874209), (19, 414099), (21, 374661), (27, 291403), (49, 160569), (57, 138033), (63, 124887), (133, 59157), (147, 53523), (171, 46011), (189, 41629), (313, 25137), (399, 19719), (441, 17841), (513, 15337), (931, 8451), (939, 8379), (1197, 6573), (1323, 5947), (2191, 3591), (2793, 2817)]