18734205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2663}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 34781184

約数和(自身を除く): 16046979

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 2663, 7035, 7989, 13315, 18641, 39945, 55923, 93205, 178421, 279615, 535263, 892105, 1248947, 2676315, 3746841, 6244735, 18734205]

約数ペア:

[(1, 18734205), (3, 6244735), (5, 3746841), (7, 2676315), (15, 1248947), (21, 892105), (35, 535263), (67, 279615), (105, 178421), (201, 93205), (335, 55923), (469, 39945), (1005, 18641), (1407, 13315), (2345, 7989), (2663, 7035)]