19280781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 31041920

約数和(自身を除く): 11761139

約数列:

[1, 3, 9, 13, 27, 39, 117, 163, 337, 351, 489, 1011, 1467, 2119, 3033, 4381, 4401, 6357, 9099, 13143, 19071, 39429, 54931, 57213, 118287, 164793, 494379, 714103, 1483137, 2142309, 6426927, 19280781]

約数ペア:

[(1, 19280781), (3, 6426927), (9, 2142309), (13, 1483137), (27, 714103), (39, 494379), (117, 164793), (163, 118287), (337, 57213), (351, 54931), (489, 39429), (1011, 19071), (1467, 13143), (2119, 9099), (3033, 6357), (4381, 4401)]