81521554

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{2309}}^1$

素因数の和:2577

約数の個数: 16

約数和(自身を含む): 124185600

約数和(自身を除く): 42664046

約数列:

[1, 2, 127, 139, 254, 278, 2309, 4618, 17653, 35306, 293243, 320951, 586486, 641902, 40760777, 81521554]

約数ペア:

[(1, 81521554), (2, 40760777), (127, 641902), (139, 586486), (254, 320951), (278, 293243), (2309, 35306), (4618, 17653)]