20961604

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{41263}}^1$

素因数の和:41394

約数の個数: 12

約数和(自身を含む): 36972544

約数和(自身を除く): 16010940

約数列:

[1, 2, 4, 127, 254, 508, 41263, 82526, 165052, 5240401, 10480802, 20961604]

約数ペア:

[(1, 20961604), (2, 10480802), (4, 5240401), (127, 165052), (254, 82526), (508, 41263)]