21102280

素因数分解:

$2^3\times 5^1\times {\mathrm{527557}}^1$

素因数の和:527568

約数の個数: 16

約数和(自身を含む): 47480220

約数和(自身を除く): 26377940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527557, 1055114, 2110228, 2637785, 4220456, 5275570, 10551140, 21102280]

約数ペア:

[(1, 21102280), (2, 10551140), (4, 5275570), (5, 4220456), (8, 2637785), (10, 2110228), (20, 1055114), (40, 527557)]