21713967

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{647}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 13744593

約数列:

[1, 3, 9, 11, 27, 33, 99, 113, 297, 339, 647, 1017, 1243, 1941, 3051, 3729, 5823, 7117, 11187, 17469, 21351, 33561, 64053, 73111, 192159, 219333, 657999, 804221, 1973997, 2412663, 7237989, 21713967]

約数ペア:

[(1, 21713967), (3, 7237989), (9, 2412663), (11, 1973997), (27, 804221), (33, 657999), (99, 219333), (113, 192159), (297, 73111), (339, 64053), (647, 33561), (1017, 21351), (1243, 17469), (1941, 11187), (3051, 7117), (3729, 5823)]