19985168

素因数分解:

$2^4\times 7^1\times {\mathrm{178439}}^1$

素因数の和:178454

約数の個数: 20

約数和(自身を含む): 44253120

約数和(自身を除く): 24267952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178439, 356878, 713756, 1249073, 1427512, 2498146, 2855024, 4996292, 9992584, 19985168]

約数ペア:

[(1, 19985168), (2, 9992584), (4, 4996292), (7, 2855024), (8, 2498146), (14, 1427512), (16, 1249073), (28, 713756), (56, 356878), (112, 178439)]