21028016

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{45319}}^1$

素因数の和:45356

約数の個数: 20

約数和(自身を含む): 42147600

約数和(自身を除く): 21119584

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 45319, 90638, 181276, 362552, 725104, 1314251, 2628502, 5257004, 10514008, 21028016]

約数ペア:

[(1, 21028016), (2, 10514008), (4, 5257004), (8, 2628502), (16, 1314251), (29, 725104), (58, 362552), (116, 181276), (232, 90638), (464, 45319)]