21448208

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{1657}}^1$

素因数の和:2474

約数の個数: 20

約数和(自身を含む): 41632380

約数和(自身を除く): 20184172

約数列:

[1, 2, 4, 8, 16, 809, 1618, 1657, 3236, 3314, 6472, 6628, 12944, 13256, 26512, 1340513, 2681026, 5362052, 10724104, 21448208]

約数ペア:

[(1, 21448208), (2, 10724104), (4, 5362052), (8, 2681026), (16, 1340513), (809, 26512), (1618, 13256), (1657, 12944), (3236, 6628), (3314, 6472)]