19464784

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11161}}^1$

素因数の和:11278

約数の個数: 20

約数和(自身を含む): 38062420

約数和(自身を除く): 18597636

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11161, 22322, 44644, 89288, 178576, 1216549, 2433098, 4866196, 9732392, 19464784]

約数ペア:

[(1, 19464784), (2, 9732392), (4, 4866196), (8, 2433098), (16, 1216549), (109, 178576), (218, 89288), (436, 44644), (872, 22322), (1744, 11161)]