20897710

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28627}}^1$

素因数の和:28707

約数の個数: 16

約数和(自身を含む): 38132496

約数和(自身を除く): 17234786

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28627, 57254, 143135, 286270, 2089771, 4179542, 10448855, 20897710]

約数ペア:

[(1, 20897710), (2, 10448855), (5, 4179542), (10, 2089771), (73, 286270), (146, 143135), (365, 57254), (730, 28627)]