20017773

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13007}}^1$

素因数の和:13038

約数の個数: 20

約数和(自身を含む): 31479360

約数和(自身を除く): 11461587

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13007, 39021, 117063, 247133, 351189, 741399, 1053567, 2224197, 6672591, 20017773]

約数ペア:

[(1, 20017773), (3, 6672591), (9, 2224197), (19, 1053567), (27, 741399), (57, 351189), (81, 247133), (171, 117063), (513, 39021), (1539, 13007)]