20931568

素因数分解:

$2^4\times 7^1\times {\mathrm{186889}}^1$

素因数の和:186904

約数の個数: 20

約数和(自身を含む): 46348720

約数和(自身を除く): 25417152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 186889, 373778, 747556, 1308223, 1495112, 2616446, 2990224, 5232892, 10465784, 20931568]

約数ペア:

[(1, 20931568), (2, 10465784), (4, 5232892), (7, 2990224), (8, 2616446), (14, 1495112), (16, 1308223), (28, 747556), (56, 373778), (112, 186889)]