21054544

素因数分解:

$2^4\times 7^1\times {\mathrm{187987}}^1$

素因数の和:188002

約数の個数: 20

約数和(自身を含む): 46621024

約数和(自身を除く): 25566480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187987, 375974, 751948, 1315909, 1503896, 2631818, 3007792, 5263636, 10527272, 21054544]

約数ペア:

[(1, 21054544), (2, 10527272), (4, 5263636), (7, 3007792), (8, 2631818), (14, 1503896), (16, 1315909), (28, 751948), (56, 375974), (112, 187987)]