2193456890

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{421009}}^1$

素因数の和:421537

約数の個数: 16

約数和(自身を含む): 3955809960

約数和(自身を除く): 1762353070

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 421009, 842018, 2105045, 4210090, 219345689, 438691378, 1096728445, 2193456890]

約数ペア:

[(1, 2193456890), (2, 1096728445), (5, 438691378), (10, 219345689), (521, 4210090), (1042, 2105045), (2605, 842018), (5210, 421009)]