21246085

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 31426560

約数和(自身を除く): 10180475

約数列:

[1, 5, 7, 19, 35, 43, 95, 133, 215, 301, 665, 743, 817, 1505, 3715, 4085, 5201, 5719, 14117, 26005, 28595, 31949, 70585, 98819, 159745, 223643, 494095, 607031, 1118215, 3035155, 4249217, 21246085]

約数ペア:

[(1, 21246085), (5, 4249217), (7, 3035155), (19, 1118215), (35, 607031), (43, 494095), (95, 223643), (133, 159745), (215, 98819), (301, 70585), (665, 31949), (743, 28595), (817, 26005), (1505, 14117), (3715, 5719), (4085, 5201)]