20977935

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127139}}^1$

素因数の和:127158

約数の個数: 16

約数和(自身を含む): 36616320

約数和(自身を除く): 15638385

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127139, 381417, 635695, 1398529, 1907085, 4195587, 6992645, 20977935]

約数ペア:

[(1, 20977935), (3, 6992645), (5, 4195587), (11, 1907085), (15, 1398529), (33, 635695), (55, 381417), (165, 127139)]