20256747

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3361}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 32194512

約数和(自身を除く): 11937765

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3361, 6027, 10083, 23527, 70581, 137801, 164689, 413403, 494067, 964607, 2893821, 6752249, 20256747]

約数ペア:

[(1, 20256747), (3, 6752249), (7, 2893821), (21, 964607), (41, 494067), (49, 413403), (123, 164689), (147, 137801), (287, 70581), (861, 23527), (2009, 10083), (3361, 6027)]