20806478

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19301}}^1$

素因数の和:19328

約数の個数: 24

約数和(自身を含む): 39607704

約数和(自身を除く): 18801226

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19301, 38602, 135107, 212311, 270214, 424622, 945749, 1486177, 1891498, 2972354, 10403239, 20806478]

約数ペア:

[(1, 20806478), (2, 10403239), (7, 2972354), (11, 1891498), (14, 1486177), (22, 945749), (49, 424622), (77, 270214), (98, 212311), (154, 135107), (539, 38602), (1078, 19301)]