20394423

素因数分解:

$3^4\times 7^1\times {\mathrm{35969}}^1$

素因数の和:35988

約数の個数: 20

約数和(自身を含む): 34818960

約数和(自身を除く): 14424537

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35969, 107907, 251783, 323721, 755349, 971163, 2266047, 2913489, 6798141, 20394423]

約数ペア:

[(1, 20394423), (3, 6798141), (7, 2913489), (9, 2266047), (21, 971163), (27, 755349), (63, 323721), (81, 251783), (189, 107907), (567, 35969)]