19319728

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28081}}^1$

素因数の和:28132

約数の個数: 20

約数和(自身を含む): 38303848

約数和(自身を除く): 18984120

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28081, 56162, 112324, 224648, 449296, 1207483, 2414966, 4829932, 9659864, 19319728]

約数ペア:

[(1, 19319728), (2, 9659864), (4, 4829932), (8, 2414966), (16, 1207483), (43, 449296), (86, 224648), (172, 112324), (344, 56162), (688, 28081)]