21280294

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89413}}^1$

素因数の和:89439

約数の個数: 16

約数和(自身を含む): 38626848

約数和(自身を除く): 17346554

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89413, 178826, 625891, 1251782, 1520021, 3040042, 10640147, 21280294]

約数ペア:

[(1, 21280294), (2, 10640147), (7, 3040042), (14, 1520021), (17, 1251782), (34, 625891), (119, 178826), (238, 89413)]