19984864

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{4493}}^1$

素因数の和:4642

約数の個数: 24

約数和(自身を含む): 39637080

約数和(自身を除く): 19652216

約数列:

[1, 2, 4, 8, 16, 32, 139, 278, 556, 1112, 2224, 4448, 4493, 8986, 17972, 35944, 71888, 143776, 624527, 1249054, 2498108, 4996216, 9992432, 19984864]

約数ペア:

[(1, 19984864), (2, 9992432), (4, 4996216), (8, 2498108), (16, 1249054), (32, 624527), (139, 143776), (278, 71888), (556, 35944), (1112, 17972), (2224, 8986), (4448, 4493)]