21917728

素因数分解:

$2^5\times 7^1\times {\mathrm{97847}}^1$

素因数の和:97864

約数の個数: 24

約数和(自身を含む): 49315392

約数和(自身を除く): 27397664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 97847, 195694, 391388, 684929, 782776, 1369858, 1565552, 2739716, 3131104, 5479432, 10958864, 21917728]

約数ペア:

[(1, 21917728), (2, 10958864), (4, 5479432), (7, 3131104), (8, 2739716), (14, 1565552), (16, 1369858), (28, 782776), (32, 684929), (56, 391388), (112, 195694), (224, 97847)]