21643216

素因数分解:

$2^4\times 7^1\times {\mathrm{193243}}^1$

素因数の和:193258

約数の個数: 20

約数和(自身を含む): 47924512

約数和(自身を除く): 26281296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193243, 386486, 772972, 1352701, 1545944, 2705402, 3091888, 5410804, 10821608, 21643216]

約数ペア:

[(1, 21643216), (2, 10821608), (4, 5410804), (7, 3091888), (8, 2705402), (14, 1545944), (16, 1352701), (28, 772972), (56, 386486), (112, 193243)]