19884784

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8941}}^1$

素因数の和:9088

約数の個数: 20

約数和(自身を含む): 38808280

約数和(自身を除く): 18923496

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8941, 17882, 35764, 71528, 143056, 1242799, 2485598, 4971196, 9942392, 19884784]

約数ペア:

[(1, 19884784), (2, 9942392), (4, 4971196), (8, 2485598), (16, 1242799), (139, 143056), (278, 71528), (556, 35764), (1112, 17882), (2224, 8941)]