19725424

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39769}}^1$

素因数の和:39808

約数の個数: 20

約数和(自身を含む): 39451840

約数和(自身を除く): 19726416

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39769, 79538, 159076, 318152, 636304, 1232839, 2465678, 4931356, 9862712, 19725424]

約数ペア:

[(1, 19725424), (2, 9862712), (4, 4931356), (8, 2465678), (16, 1232839), (31, 636304), (62, 318152), (124, 159076), (248, 79538), (496, 39769)]