19664816

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{53437}}^1$

素因数の和:53468

約数の個数: 20

約数和(自身を含む): 39757872

約数和(自身を除く): 20093056

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 53437, 106874, 213748, 427496, 854992, 1229051, 2458102, 4916204, 9832408, 19664816]

約数ペア:

[(1, 19664816), (2, 9832408), (4, 4916204), (8, 2458102), (16, 1229051), (23, 854992), (46, 427496), (92, 213748), (184, 106874), (368, 53437)]