21862640

素因数分解:

$2^4\times 5^1\times {\mathrm{273283}}^1$

素因数の和:273296

約数の個数: 20

約数和(自身を含む): 50830824

約数和(自身を除く): 28968184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273283, 546566, 1093132, 1366415, 2186264, 2732830, 4372528, 5465660, 10931320, 21862640]

約数ペア:

[(1, 21862640), (2, 10931320), (4, 5465660), (5, 4372528), (8, 2732830), (10, 2186264), (16, 1366415), (20, 1093132), (40, 546566), (80, 273283)]