1721014775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{18773}}^1$

素因数の和:18995

約数の個数: 24

約数和(自身を含む): 2258136720

約数和(自身を除く): 537121945

約数列:

[1, 5, 19, 25, 95, 193, 475, 965, 3667, 4825, 18335, 18773, 91675, 93865, 356687, 469325, 1783435, 3623189, 8917175, 18115945, 68840591, 90579725, 344202955, 1721014775]

約数ペア:

[(1, 1721014775), (5, 344202955), (19, 90579725), (25, 68840591), (95, 18115945), (193, 8917175), (475, 3623189), (965, 1783435), (3667, 469325), (4825, 356687), (18335, 93865), (18773, 91675)]