28914561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13007}}^1$

素因数の和:13045

約数の個数: 24

約数和(自身を含む): 47349120

約数和(自身を除く): 18434559

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 13007, 39021, 117063, 169091, 247133, 507273, 741399, 1521819, 2224197, 3212729, 9638187, 28914561]

約数ペア:

[(1, 28914561), (3, 9638187), (9, 3212729), (13, 2224197), (19, 1521819), (39, 741399), (57, 507273), (117, 247133), (171, 169091), (247, 117063), (741, 39021), (2223, 13007)]