20147681421

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{739}}^1\times {\mathrm{2153}}^1$

素因数の和:2975

約数の個数: 64

約数和(自身を含む): 34684569600

約数和(自身を除く): 14536888179

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 739, 1407, 1809, 2153, 2217, 4221, 5173, 6459, 6651, 12663, 15071, 15519, 19377, 19953, 45213, 46557, 49513, 58131, 135639, 139671, 144251, 148539, 346591, 406917, 432753, 445617, 1009757, 1039773, 1298259, 1336851, 1591067, 3029271, 3119319, 3894777, 4773201, 9087813, 9357957, 11137469, 14319603, 27263439, 33412407, 42958809, 100237221, 106601489, 300711663, 319804467, 746210423, 959413401, 2238631269, 2878240203, 6715893807, 20147681421]

約数ペア:

[(1, 20147681421), (3, 6715893807), (7, 2878240203), (9, 2238631269), (21, 959413401), (27, 746210423), (63, 319804467), (67, 300711663), (189, 106601489), (201, 100237221), (469, 42958809), (603, 33412407), (739, 27263439), (1407, 14319603), (1809, 11137469), (2153, 9357957), (2217, 9087813), (4221, 4773201), (5173, 3894777), (6459, 3119319), (6651, 3029271), (12663, 1591067), (15071, 1336851), (15519, 1298259), (19377, 1039773), (19953, 1009757), (45213, 445617), (46557, 432753), (49513, 406917), (58131, 346591), (135639, 148539), (139671, 144251)]