21437870

素因数分解:

$2^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4691}}^1$

素因数の和:5155

約数の個数: 16

約数和(自身を含む): 38680848

約数和(自身を除く): 17242978

約数列:

[1, 2, 5, 10, 457, 914, 2285, 4570, 4691, 9382, 23455, 46910, 2143787, 4287574, 10718935, 21437870]

約数ペア:

[(1, 21437870), (2, 10718935), (5, 4287574), (10, 2143787), (457, 46910), (914, 23455), (2285, 9382), (4570, 4691)]