21104420

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2437}}^1$

素因数の和:2879

約数の個数: 24

約数和(自身を含む): 44439864

約数和(自身を除く): 23335444

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2165, 2437, 4330, 4874, 8660, 9748, 12185, 24370, 48740, 1055221, 2110442, 4220884, 5276105, 10552210, 21104420]

約数ペア:

[(1, 21104420), (2, 10552210), (4, 5276105), (5, 4220884), (10, 2110442), (20, 1055221), (433, 48740), (866, 24370), (1732, 12185), (2165, 9748), (2437, 8660), (4330, 4874)]