21407792

素因数分解:

$2^4\times 7^1\times {\mathrm{191141}}^1$

素因数の和:191156

約数の個数: 20

約数和(自身を含む): 47403216

約数和(自身を除く): 25995424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191141, 382282, 764564, 1337987, 1529128, 2675974, 3058256, 5351948, 10703896, 21407792]

約数ペア:

[(1, 21407792), (2, 10703896), (4, 5351948), (7, 3058256), (8, 2675974), (14, 1529128), (16, 1337987), (28, 764564), (56, 382282), (112, 191141)]