21540344

素因数分解:

$2^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1993}}^1$

素因数の和:2199

約数の個数: 32

約数和(自身を含む): 46420320

約数和(自身を除く): 24879976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 193, 386, 772, 1351, 1544, 1993, 2702, 3986, 5404, 7972, 10808, 13951, 15944, 27902, 55804, 111608, 384649, 769298, 1538596, 2692543, 3077192, 5385086, 10770172, 21540344]

約数ペア:

[(1, 21540344), (2, 10770172), (4, 5385086), (7, 3077192), (8, 2692543), (14, 1538596), (28, 769298), (56, 384649), (193, 111608), (386, 55804), (772, 27902), (1351, 15944), (1544, 13951), (1993, 10808), (2702, 7972), (3986, 5404)]