20995755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127247}}^1$

素因数の和:127266

約数の個数: 16

約数和(自身を含む): 36647424

約数和(自身を除く): 15651669

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127247, 381741, 636235, 1399717, 1908705, 4199151, 6998585, 20995755]

約数ペア:

[(1, 20995755), (3, 6998585), (5, 4199151), (11, 1908705), (15, 1399717), (33, 636235), (55, 381741), (165, 127247)]