20980366

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30763}}^1$

素因数の和:30807

約数の個数: 16

約数和(自身を含む): 35440128

約数和(自身を除く): 14459762

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 30763, 61526, 338393, 676786, 953653, 1907306, 10490183, 20980366]

約数ペア:

[(1, 20980366), (2, 10490183), (11, 1907306), (22, 953653), (31, 676786), (62, 338393), (341, 61526), (682, 30763)]