20708235

素因数分解:

$3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3359}}^1$

素因数の和:3507

約数の個数: 24

約数和(自身を含む): 36167040

約数和(自身を除く): 15458805

約数列:

[1, 3, 5, 9, 15, 45, 137, 411, 685, 1233, 2055, 3359, 6165, 10077, 16795, 30231, 50385, 151155, 460183, 1380549, 2300915, 4141647, 6902745, 20708235]

約数ペア:

[(1, 20708235), (3, 6902745), (5, 4141647), (9, 2300915), (15, 1380549), (45, 460183), (137, 151155), (411, 50385), (685, 30231), (1233, 16795), (2055, 10077), (3359, 6165)]