19489904

素因数分解:

$2^4\times 7^1\times {\mathrm{174017}}^1$

素因数の和:174032

約数の個数: 20

約数和(自身を含む): 43156464

約数和(自身を除く): 23666560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 174017, 348034, 696068, 1218119, 1392136, 2436238, 2784272, 4872476, 9744952, 19489904]

約数ペア:

[(1, 19489904), (2, 9744952), (4, 4872476), (7, 2784272), (8, 2436238), (14, 1392136), (16, 1218119), (28, 696068), (56, 348034), (112, 174017)]