18978208

素因数分解:

$2^5\times {\mathrm{109}}^1\times {\mathrm{5441}}^1$

素因数の和:5560

約数の個数: 24

約数和(自身を含む): 37713060

約数和(自身を除く): 18734852

約数列:

[1, 2, 4, 8, 16, 32, 109, 218, 436, 872, 1744, 3488, 5441, 10882, 21764, 43528, 87056, 174112, 593069, 1186138, 2372276, 4744552, 9489104, 18978208]

約数ペア:

[(1, 18978208), (2, 9489104), (4, 4744552), (8, 2372276), (16, 1186138), (32, 593069), (109, 174112), (218, 87056), (436, 43528), (872, 21764), (1744, 10882), (3488, 5441)]