20418272

素因数分解:

$2^5\times 7^1\times {\mathrm{91153}}^1$

素因数の和:91170

約数の個数: 24

約数和(自身を含む): 45941616

約数和(自身を除く): 25523344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 91153, 182306, 364612, 638071, 729224, 1276142, 1458448, 2552284, 2916896, 5104568, 10209136, 20418272]

約数ペア:

[(1, 20418272), (2, 10209136), (4, 5104568), (7, 2916896), (8, 2552284), (14, 1458448), (16, 1276142), (28, 729224), (32, 638071), (56, 364612), (112, 182306), (224, 91153)]