21135184

素因数分解:

$2^4\times 7^1\times {\mathrm{188707}}^1$

素因数の和:188722

約数の個数: 20

約数和(自身を含む): 46799584

約数和(自身を除く): 25664400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188707, 377414, 754828, 1320949, 1509656, 2641898, 3019312, 5283796, 10567592, 21135184]

約数ペア:

[(1, 21135184), (2, 10567592), (4, 5283796), (7, 3019312), (8, 2641898), (14, 1509656), (16, 1320949), (28, 754828), (56, 377414), (112, 188707)]