20210776

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{3929}}^1$

素因数の和:4578

約数の個数: 16

約数和(自身を含む): 37963800

約数和(自身を除く): 17753024

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 3929, 5144, 7858, 15716, 31432, 2526347, 5052694, 10105388, 20210776]

約数ペア:

[(1, 20210776), (2, 10105388), (4, 5052694), (8, 2526347), (643, 31432), (1286, 15716), (2572, 7858), (3929, 5144)]