20512233

素因数分解:

$3^2\times 7^2\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:454

約数の個数: 36

約数和(自身を含む): 34788468

約数和(自身を除く): 14276235

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 193, 241, 441, 579, 723, 1351, 1687, 1737, 2169, 4053, 5061, 9457, 11809, 12159, 15183, 28371, 35427, 46513, 85113, 106281, 139539, 325591, 418617, 976773, 2279137, 2930319, 6837411, 20512233]

約数ペア:

[(1, 20512233), (3, 6837411), (7, 2930319), (9, 2279137), (21, 976773), (49, 418617), (63, 325591), (147, 139539), (193, 106281), (241, 85113), (441, 46513), (579, 35427), (723, 28371), (1351, 15183), (1687, 12159), (1737, 11809), (2169, 9457), (4053, 5061)]