21299068

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4397}}^1$

素因数の和:4581

約数の個数: 24

約数和(自身を含む): 42854112

約数和(自身を除く): 21555044

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4397, 4844, 8794, 17588, 30779, 61558, 123116, 760681, 1521362, 3042724, 5324767, 10649534, 21299068]

約数ペア:

[(1, 21299068), (2, 10649534), (4, 5324767), (7, 3042724), (14, 1521362), (28, 760681), (173, 123116), (346, 61558), (692, 30779), (1211, 17588), (2422, 8794), (4397, 4844)]