12615687

素因数分解:

$3^2\times 7^2\times {\mathrm{28607}}^1$

素因数の和:28627

約数の個数: 18

約数和(自身を含む): 21198528

約数和(自身を除く): 8582841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 28607, 85821, 200249, 257463, 600747, 1401743, 1802241, 4205229, 12615687]

約数ペア:

[(1, 12615687), (3, 4205229), (7, 1802241), (9, 1401743), (21, 600747), (49, 257463), (63, 200249), (147, 85821), (441, 28607)]