21055155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127607}}^1$

素因数の和:127626

約数の個数: 16

約数和(自身を含む): 36751104

約数和(自身を除く): 15695949

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127607, 382821, 638035, 1403677, 1914105, 4211031, 7018385, 21055155]

約数ペア:

[(1, 21055155), (3, 7018385), (5, 4211031), (11, 1914105), (15, 1403677), (33, 638035), (55, 382821), (165, 127607)]