20689712

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{13331}}^1$

素因数の和:13436

約数の個数: 20

約数和(自身を含む): 40502616

約数和(自身を除く): 19812904

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 13331, 26662, 53324, 106648, 213296, 1293107, 2586214, 5172428, 10344856, 20689712]

約数ペア:

[(1, 20689712), (2, 10344856), (4, 5172428), (8, 2586214), (16, 1293107), (97, 213296), (194, 106648), (388, 53324), (776, 26662), (1552, 13331)]