21040660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36277}}^1$

素因数の和:36315

約数の個数: 24

約数和(自身を含む): 45710280

約数和(自身を除く): 24669620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36277, 72554, 145108, 181385, 362770, 725540, 1052033, 2104066, 4208132, 5260165, 10520330, 21040660]

約数ペア:

[(1, 21040660), (2, 10520330), (4, 5260165), (5, 4208132), (10, 2104066), (20, 1052033), (29, 725540), (58, 362770), (116, 181385), (145, 145108), (290, 72554), (580, 36277)]