667942748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1380047}}^1$

素因数の和:1380073

約数の個数: 18

約数和(自身を含む): 1284824688

約数和(自身を除く): 616881940

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1380047, 2760094, 5520188, 15180517, 30361034, 60722068, 166985687, 333971374, 667942748]

約数ペア:

[(1, 667942748), (2, 333971374), (4, 166985687), (11, 60722068), (22, 30361034), (44, 15180517), (121, 5520188), (242, 2760094), (484, 1380047)]