18628688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89561}}^1$

素因数の和:89582

約数の個数: 20

約数和(自身を含む): 38869908

約数和(自身を除く): 20241220

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89561, 179122, 358244, 716488, 1164293, 1432976, 2328586, 4657172, 9314344, 18628688]

約数ペア:

[(1, 18628688), (2, 9314344), (4, 4657172), (8, 2328586), (13, 1432976), (16, 1164293), (26, 716488), (52, 358244), (104, 179122), (208, 89561)]