21000949048

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154418743}}^1$

素因数の和:154418766

約数の個数: 16

約数和(自身を含む): 41693060880

約数和(自身を除く): 20692111832

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154418743, 308837486, 617674972, 1235349944, 2625118631, 5250237262, 10500474524, 21000949048]

約数ペア:

[(1, 21000949048), (2, 10500474524), (4, 5250237262), (8, 2625118631), (17, 1235349944), (34, 617674972), (68, 308837486), (136, 154418743)]