21670304

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:333

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 22782496

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 83, 164, 166, 199, 328, 332, 398, 656, 664, 796, 1312, 1328, 1592, 2656, 3184, 3403, 6368, 6806, 8159, 13612, 16318, 16517, 27224, 32636, 33034, 54448, 65272, 66068, 108896, 130544, 132136, 261088, 264272, 528544, 677197, 1354394, 2708788, 5417576, 10835152, 21670304]

約数ペア:

[(1, 21670304), (2, 10835152), (4, 5417576), (8, 2708788), (16, 1354394), (32, 677197), (41, 528544), (82, 264272), (83, 261088), (164, 132136), (166, 130544), (199, 108896), (328, 66068), (332, 65272), (398, 54448), (656, 33034), (664, 32636), (796, 27224), (1312, 16517), (1328, 16318), (1592, 13612), (2656, 8159), (3184, 6806), (3403, 6368)]