21580041

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{2011}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 33946464

約数和(自身を除く): 12366423

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 2011, 3577, 6033, 10731, 14077, 42231, 98539, 146803, 295617, 440409, 1027621, 3082863, 7193347, 21580041]

約数ペア:

[(1, 21580041), (3, 7193347), (7, 3082863), (21, 1027621), (49, 440409), (73, 295617), (147, 146803), (219, 98539), (511, 42231), (1533, 14077), (2011, 10731), (3577, 6033)]