20815676931

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26789803}}^1$

素因数の和:26789850

約数の個数: 16

約数和(自身を含む): 32576401664

約数和(自身を除く): 11760724733

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 26789803, 80369409, 187528621, 562585863, 991222711, 2973668133, 6938558977, 20815676931]

約数ペア:

[(1, 20815676931), (3, 6938558977), (7, 2973668133), (21, 991222711), (37, 562585863), (111, 187528621), (259, 80369409), (777, 26789803)]